Project

Symposium on Risk analysis and Safety of Technical Systems (ECF22 conference, Serbia)

Goal: Dear Colleagues,

I invite you to submit an abstract to the Symposium

Risk analysis and Safety of Technical Systems

organized by Technical Committee 12 “Risk analysis and Safety of Large Structures and Components (RAS TC 12)” of the European Structural Integrity Society within the framework of the 22nd European Conference on Fracture - ECF22 to be held in Belgrade, Serbia, 26-31 August 2018 (see http://www.ecf22.rs/).

The deadline for the abstracts is 31 January 2018.

This Symposium is intended to be a forum of discussion of the recent advances in maintenance, safety, risk analysis, management and life-cycle performance of a wide range of infrastructures, such as, engineering technical systems, bridges, buildings, dams, railways, underground constructions, wind and transmission towers, offshore platforms, pipelines, naval vessels, ocean structures, nuclear power plants, airplanes and other types of structures including aerospace and automotive structures are considered. It is expected contributions from engineers, metallurgists, material scientists, among others, allowing a very multidisciplinary discussion.

All contributions in the form of extended abstracts will be peer reviewed by the members of ESIS TC12 Technical Committee. A selection of papers presented at this Symposium will be published in a Special Issue on associated ESIS journals (International Journal of Fatigue, Engineering Failure Analysis, Engineering Fracture Mechanics, Theoretical and Applied Fracture Mechanics).

The ESIS technical committee “TC12 - Risk Analysis and Safety of Large Structures and Components” supports the Minisymposium. The annual meeting of the TC12 will be performed during the conference event.


IMPORTANT:
1) When submitting your abstract please mention the name of Symposium - “Risk analysis and Safety of Technical Systems”.
2) Please inform us about your submission/intention to submit so that we could plan Symposium’s sessions (jacorreia@inegi.up.pt)


With best regards,
José Correia, Vladimir Moskvichev and Aleksandar Sedmak
ESIS TC12 Chairs

Methods: Civil Engineering, Mechanical Engineering, Naval Engineering, Nuclear Engineering, Risk Management, Risk Management Model, Material Characterization, Materials, Solar Energy, Corrosion Engineering, Construction Materials, Mechanical Design, Mechanical Engineering Design, Mechanical Testing, Metallurgical Engineering, Mechanical Properties, Life-Cycle Assessment, Risk Measures, Plant Stress Measurements, Strain Theory, Earthquake Prediction, Mechanical Sensors, Welding, Coatings, Reliability, Preventive Maintenance, Ecological Risk Assessment, Mechanical Metallurgy, Environmental Pollution, Civil Engineering Materials, Power Plants, Risk Modeling, Offshore Structure, Reliability Engineering, Marine Corrosion, Environmental Protection Agency, Fractography, FMEA, Structural Reliability, Strain Analysis, Probabilistic Risk Analysis, Structural Metallurgy, Mechanical Vibrations, Aircraft Maintenance, Construction Risk Management, Pipeline Stress Analysis, Reliability Theory, Power Generation, Boiler and Pressure Vessels, Environmental Risk Assessment, Pipeline Engineering, Power System Protection, Building Forensics, Machinery Maintenance, Offshore Engineering, Increasing Machine Reliability, Mechanical Stress, Maintenance Planning, Plant Protection, Railway, Pressure Vessel, Mechanical Torsion, Power System Reliability, Condition-based Maintenance, Thermal Spray, Pressure Vessel Design, Equipment Failure Analysis, Welding Metallurgy, Hydrogen Technology, Bridge Engineering, Maintenance Management, Civil Engineering Technology, Vibration Testing, Nuclear Power, Corrosion Protection, Risk-Based Monitoring

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Project log

Milos Djukic
added a research item
Corrosion effects on structural integrity and life of oil rig welded pipes are analysed by experimental, analytical, and numerical methods. Experiments were performed using standard tensile specimens and CT specimens for static loading, Charpy specimens for impact loading, and 3 Point Bending specimens for fatigue crack growth with amplitude loading. In each case new and old pipes were used to evaluate corrosion effects. Results indicated negligible corrosion effects in the case of tensile properties and impact toughness, and strong effects in the case of fracture toughness and especially fatigue crack growth rates, increasing the risk of static failure and reducing significantly structural life. Analytical expressions are used for oil rig pipe structural integrity and life assessment to quantify these effects. Recently introduced risk-based approach is applied to analyse oil rig drill pipe with a corrosion defect treated as a surface crack.
Milos Djukic
added a research item
This paper presents an updated review of the external corrosion and failure mechanisms of buried natural gas and oil pipelines. Various forms of external corrosion and failure mechanisms such as hydrogen-induced cracking (HIC), hydrogen embrittlement (HE), corrosion fatigue (CF), stress corrosion cracking (SCC) and microbiologically influenced corrosion (MIC) for oil and gas pipelines are thoroughly reviewed. The factors influencing external corrosion and possible forms of environment-assisted cracking (EAC) of pipeline steels in the soil are also reviewed and analyzed in depth. In addition, the existing monitoring tools for the external corrosion assessment and the models for corrosion prevention and prediction, failure occurrence, and remaining life of oil and gas pipelines, are analyzed. Moreover, the articles on external corrosion management, reliability-based models, risk-based models, and integrity assessment including machine learning and fuzzy logic approaches, are also reviewed. The conclusions and recommendations for future research in the prevention and prediction of external corrosion are presented at the end.
Milos Djukic
added a research item
Considering corrosion rate during the remaining life assessment of aging pipelines is fundamental to calculate the interval between two consecutive inspections. A total of 798 internal and external corrosion defects have been detected, using the Magnetic Flux Leakage intelligent inspection tool, over 48 km of a pipeline length located in the west region of Algeria. The statistical analysis has shown that there is a strong correlation between the corrosion defect length and the corrosion defect circumferential width, with a significant correlation coefficient equal to 82.87%. A probabilistic methodology is presented for the assessment of the remaining life of a corroded pipeline transporting gas, and a finite element method (FEM) was used to assess the pipeline failure pressure. The numerical FEM modeling results were compared with the commonly used codes-models for calculating limit pressure to establish a more realistic and accurate engineering model. The reliability analysis of an API 5L X60 steel made Algerian natural gas pipeline, in service for thirty years, and exposed to active corrosion attack, is presented. The sensitivity analysis of the basic random variables within the nonlinear limit state function was carried out to bring out the relative contribution of each variable affecting the remaining life of corroded pipelines. The reliability analysis is carried out by using Breitung's formula, based on the second-order reliability method (SORM). The reliability assessment of the corroded pipeline is based on the usage of the notched failure assessment diagram (NFAD), different codes for the calculation of the failure pressure, and the numerical results using the finite element analyses (FEA) software ANSYS.
Milos Djukic
added a research item
Hydrogen embrittlement (HE) in a specific sense meaning can be defined as the hydrogen-caused deterioration of the mechanical properties of most metallic materials and alloys. The coexistence of different HE mechanisms and their simultaneous effects in metallic materials, including steels, is still not well documented, while recognition of the dominant mechanism, one or more, is an extremely challenging and crucial problem. A special structural integrity model was proposed [1] for analysis, prevention, and prediction of HE based on the HELP + HEDE model [2] for HE in steels. The structural integrity model corresponds with the observed coexistence of HE mechanisms (HELP + HEDE model) in metals and transition from HELP dominance to HEDE dominance at a hydrogen concentration above the critical hydrogen concentration [2,3]. The further implementation of methods for evaluation, control, and prevention of hydrogen-assisted mechanical degradation processes and HE in metals requires that the variables relevant to the application be incorporated into the basic concept that define all necessary successive steps (5-step approach) for the industrial application [2]. The global 5-step approach in assessment and prevention of hydrogen assisted mechanical degradation processes and hydrogen embrittlement in metals for the practical industrial application was proposed and consist of the following steps [3]: (1) phenomenology analysis of hydrogen-related degradation (multiscale modeling and simulation of HE phenomena); (2) hydrogen sources and entry into metal/component; (3) structural integrity (SiM) model and (4) predictive maintenance (PdM) model which should provide the basis for future (5) reliable and accurate HE damage prediction of different industrial components. [1] M.B. Djukic, G.M. Bakic, V. Sijacki Zeravcic, A. Sedmak, B. Rajicic, Hydrogen embrittlement of industrial components: prediction, prevention, and models, Corrosion, 72 (2016), pp. 943-961. [2] M.B. Djukic, V. Sijacki Zeravcic, G.M. Bakic, A. Sedmak, B. Rajicic, Hydrogen damage of steels: A case study and hydrogen embrittlement model, Engineering Failure Analysis, 58 (2015), pp. 485-498. [3] M.B. Djukic, V. Sijacki Zeravcic, G.M. Bakic, A. Sedmak, B. Rajicic, The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion, Engineering Fracture Mechanics 216 (2019), p. 106528.
Milos Djukic
added a research item
Hydrogen gas is a renewable energy source for electrical and transportation fuel for vehicular applications. However, the storage and transportation of hydrogen gas are challenging because of its very nature and impact on pipelines and storage tank/facility materials. This paper investigates the influence of hydrogen on the candidate fracture toughness (KQ) of low carbon steel immersed in acidic hydrogen environments for one year which has limited previous research. Steel specimens were coated from all sides except one surface to accurately quantify the influence of hydrogen diffusing from the environments into the specimens. Specimens were tested for crack tip opening displacement (CTOD) fracture toughness at six- and twelve-month intervals of immersion in acidic environments. Before KQ testing at various intervals, the hydrogen contents of the specimens were determined by an electrochemical approach. Based on test results, models for the degradation of KQ of steel were developed in accordance with the proposed hydrogen-enhanced localized plasticity (HELP) and hydrogen-enhanced decohesion (HEDE) model (HELP + HEDE model) of hydrogen embrittlement. Furthermore, fractography of the specimens was performed to observe the synergistic action of HELP and HEDE mechanisms of hydrogen embrittlement (HE), and their subsequent effects on the microstructure and fracture resistance of steel. The significance of the research is highlighted by its practical application for assessing the durability of steel structures and infrastructure against hydrogen environment-assisted cracking (HEAC). Furthermore, this paper highlights the synergistic activity of the HELP and HEDE mechanisms of HE in steel and the importance of developing structures for storing hydrogen on a large scale.
Grzegorz Lesiuk
added a research item
The possibility of eliminating of electrically inactive areas from varistor body with maintaining varistor electrical parameters can be achieved by modifying Bi 2 O 3 in such a way that a Bi-rich layer which surrounds the grains of ZnO is as thin as possible and by minimizing of the amount of additives so as not to form electrically inactive areas in varistor. It has been proven that modification of Bi 2 O 3 with small quantities of other MeO results in significant changes in the varistor structure, thereby gaining the uniform distribution of the intergranular phase. The work contains the results on which Sb 2 O 3 were added in an amount of 15 mol%. After mixing with Bi 2 O 3 they were sintered and shivered. Modified Bi 2 O 3 was added to the varistor bulk in quantities of 1.0, 0.3, 0.2 and 0.1 mol% to study the varistor properties. The best results were obtained for the varistor doped with 0.3 mol% Bi 2 O 3 modified by Sb, which has the best compatibility with the mathematically model calculated by statistical methods describing 100% of conductive grain boundaries. The obtained results of the varistors microstructure modification led additionally to reduce amounts of additives for about 30% and thus to lower at about 10% of production costs.
Milos Djukic
added a research item
Bearing in mind the multiple effects of hydrogen in steels, the specific mechanism of hydrogen embrittlement (HE) is active, depending on the experimental conditions and numerous factors which can be grouped as environmental, mechanical and material influences. A large number of contemporary studies and models about hydrogen environment assisted cracking and HE in steels are presented in the form of critical review in this paper. This critical review represent the necessary background for the development of a multiscale structural integrity model based on correlation between simultaneously active HE micro-mechanisms: the hydrogen-enhanced localized plasticity (HELP) and the hydrogen-enhanced decohesion (HEDE) - (HELP+HEDE) and macro-mechanical response of material, unevenly enriched with hydrogen during service of boiler tubes in thermal fossil fuel power plant. Several different experimental methods and techniques were used to determine the boiler tube failure mechanism and afterwards also the viable HE mechanisms in the investigated ferritic-pearlitic low carbon steel, grade 20 - St.20 (equivalent to AISI 1020). That represent a background for the development of a structural integrity model based on the correlation of material macro-mechanical properties to scanning electron microscopy fractography analysis of fracture surfaces of Charpy specimens, in the presence of confirmed and simultaneously active HE micro-mechanisms (HELP+HEDE) in steel. The aim of this paper is to show how to implement what we have learned from theoretical HE models into the field to provide industry with valuable data and practical structural integrity model.
Milos Djukic
added a research item
Pipe elbows (bends) are considered critical pressurized components in the piping systems and pipelines due to their stress intensification and the effect of bend curvature. They are prone and hence more exposed to different corrosion failure modes than straight pipes. Late detection of such elbow damages can lead to different dangerous and emergency situations which cause environmental disasters, pollution, substantial consumer losses and a serious threat to human life. A comprehensive safety and reliability assessment of pipe elbows, including usage of prediction models, can provide significant increases in the service life of pipelines. It is well known that the limit pressure is an important parameter to assess the piping integrity. In this paper, the integrity assessment of damaged pipeline elbows made of API 5L X52 steel was done within the framework of numerical modeling using the finite element method (FEM) and finite element analysis (FEA). The evaluation of numerically FEM modeled limit pressure in the corroded elbow containing a rectangular parallelepiped-shaped corrosion defect with rounded corners at the intrados section was done and compared to different codes for calculating limit pressure. Moreover, the area with the corrosion defects with different relative defect depth to wall thickness ratios was FEM modeled at the intrados section of the pipe elbow where the highest hoop stress exists. The results showed that the codes for straight pipes could not be applied for the pipe elbows due to the significantly higher error in the obtained limit pressure value compared with numerically FEM obtained results. However, the results for modified codes, adapted for the pipe elbow case using the Goodall formula for calculation of the hoop stress in pipe elbows with defects are pretty consistent with the numerical FEA results. The notch failure assessment diagram (NFAD) was also used for the straight pipe and pipe bends with different corrosion defect depth ratios, while the obtained critical defect depth ratios further highlighted the criticality of pipe elbows as an essential pipeline component.
Milos Djukic
added a research item
The aim of this Hydrogen embrittlement Special Symposium in Engineering Fracture Mechanics journal was to bring together top scientists and researchers in the field of hydrogen embrittlement in order to present the latest achievements, the current state of the art, and the future research framework in understanding hydrogen embrittlement phenomena. Hydrogen embrittlement continues to be a critical degradation mode of structural metals and is becoming increasingly important as society works toward a hydrogen economy as part of the solution to sustainability and climate change. The effects of hydrogen in metals are numerous, as hydrogen segregates to defects, affects metal plasticity, and of course, causes a premature fracture. Research is thus investigating all of these topics, and their dependencies on specific metal types and alloys. Understanding of these phenomena in any alloy system may provide strategies for mitigating the effects of hydrogen or guide usage of components, while a more holistic understanding of the fundamental physics, mechanics, and materials science may provide strategies for the development of new alloys that resist hydrogen embrittlement.
Milos Djukic
added a research item
Corrosion induced failure of buried ferrous pipelines causes significant economic losses to the world. Many of the existing buried water pipelines are made of ductile iron in most of the developed countries. Literature shows that the research on the corrosion-induced degradation assessments of ductile iron pipelines is limited and mostly deals with the physical deterioration i.e., loss of wall thickness determined by short-term research. This paper addresses this gap and presents a comparatively long-term study on the corrosion and its subsequent effect on the composition and nanomechanical properties of buried ductile iron pipelines in the accelerated corrosive environment. For experimentation, ductile iron specimens were immersed in the acidic simulated soil solution for 365 days. Physical deterioration assessment over the time was carried out in terms of corrosion rates measured at intervals of 180 and 365 days. A significant change in the percentage composition of key elements and phases were quantified. Furthermore, the mechanical properties of the grains were found to be considerably reduced after 365 days of immersion in the acidic environment by the nanoindentation technique. The results revealed an alarming increase of structural degradation at nano scale for some of the grains due to chloride induced localized corrosion. The significance of the current research is its in-depth analysis of the corrosion-induced degradation of ductile iron pipes which enhances the knowledge related to the failure of these pipelines
Milos Djukic
added a research item
We are reporting in this study the hydrogen permeation in the lattice structure of a steel pipeline designed for natural gas transportation by investigating the influence of blending gaseous hydrogen into natural gas flow and resulted internal pressure values on the structural integrity of cracked pipes. The presence of cracks may provoke pipeline failure and hydrogen leakage. The auto-ignition of hydrogen leaks, although been small, leads to a flame difficult to be seen. The latter makes such a phenomenon extremely dangerous as explosions became very likely to happen. In this paper, a reliable method is presented that can be used to predict the acceptable defect in order to reduce risks caused by pipe failure due to hydrogen embrittlement. The presented model takes into account the synergistic effects of transient gas flow conditions in pipelines and hydrogen embrittlement of steel material due to pressurized hydrogen gas permeation. It is found that blending hydrogen gas into natural gas pipelines increases the internal load on the pipeline walls due to overpressure values that may be reached in a transient gas flow regime. Also, the interaction between transient hydrogen gas flow and embrittlement of API 5L X52 steel pipeline was investigated using Failure Assessment Diagram (FAD) and the results have shown that transient flow enhances pipeline failure due to hydrogen permeation. It was shown that hydrogen embrittlement of steel pipelines in contact with the hydrogen environment, together with the transient gas flow and significantly increased transient pressure values, also increases the probability of failure of a cracked pipeline. Such a situation threatens the integrity of high stress pipelines, especially under the real working conditions of hydrogen gas transportation.
Grzegorz Lesiuk
added a research item
The paper presents the results of comparative strength tests on reinforced concrete beams with two different types of reinforcement. The test beams had glass-fibre-reinforced-polymer reinforcing bars with transversal stirrups, while the control beams used conventional streel reinforcement. Both groups were prepared with appropriate geometric parameters and dimensions to enable meaningful comparison. The research was based on the standards, technical approvals, recommendations and strength data of manufacturers. The four-point bending strength test was performed after 28 days to determine the stiffness and bending load capacity of the beams. The class of concrete prepared on cubic cubes was also determined to confirm the design assumptions. The obtained measurements were used to assess the suitability of individual material combinations for practical applications.
Milos Djukic
added a research item
This paper aims to investigate the effect of hydrogen-induced mechanical degradation of low carbon steel at macro-, micro- and nano-levels in the hydrogen-rich acidic environments. From the test results of specimens, a relationship in hydrogen concentration and corrosion propagation was observed that led to the significant reductions of bulk elastic modulus after 28 days of exposure to the hydrogen-rich acidic environments. Through microstructural analysis, the deformation of larger grains, cracks, and blisters caused by hydrogen penetration was found as the possible cause for this reduction. Moreover, by performing nanoindentation on the areas of interest of various specimens at planned time periods, the influence of hydrogen on the nano-elastic and nano-hardness properties of grains was determined. The 3D surface profiles of the nano-elastic modulus and nano-hardness of various specimens are presented in this paper.
Milos Djukic
added an update
Invited Speakers TC10 B "Hydrogen Embrittlement" Special Symposium with a round table and panel discussions: "The Current State of the Art in Hydrogen Embrittlement Understanding" (https://www.ecf23.eu/thematic-symposia/), Organized by Milos B. Djukic, Associate Prof., Prof. Hrihoriy Nykyforchyn, Prof. Jesús Toribio, Motomichi Koyama, Associate Prof. and Prof. Andrej Atrens,
within the European Conference on Fracture - ECF23, Funchal, Madeira, Portugal, June 27 – July 3, 2020. (https://www.ecf23.eu).
Dear colleagues, HE Project participants, and followers,
We are pleased to inform you that currently (11.12.2019.) the following esteemed Invited Speakers have accepted their participation: 1. Prof. Andrej Atrens, The University of Queensland, Australia
2. Prof. Kaneaki Tsuzaki, Kyushu University, Japan
3. Prof. Kenichi Takai, Sophia University, Japan
4. Prof. Zhiliang Zhang, Norwegian University of Science and Technology (NTNU), Norway
5. Prof. Afrooz Barnoush, Norwegian University of Science and Technology (NTNU), Norway
6. Prof. Gilbert Hénaff, Ecole Nationale Supérieure de Mécanique et d'Aérotechnique, France
7. Prof. Mariano Iannuzzi, Curtin University, Curtin Corrosion Centre, Australia
8. Prof. Zhiyong Liu, University of Science and Technology Beijing, China
9. Prof. Kim Verbeken (Pending), Ghent University, Belgium
10. Prof. Hiroyuki Toda (Pending), Kyushu University, Japan
11. Motomichi Koyama, Assoc. Prof., Tohoku University, Institute for Materials Research, Japan
12. Akinobu Shibata, Assoc. Prof., Kyoto University, Japan
13. Dr. Ali Tehranchi, Max Planck Institut für Eisenforschung GmbH, Germany
14. Dr. Tilman Hickel (Pending), Max Planck Institut für Eisenforschung GmbH, Germany 15. Dr. Masatake Yamaguchi, Japan Atomic Energy Agency (JAEA), Japan
16. Dr. Jinwoo Kim from Prof. C. Cem Tasan Group, Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), USA
17. Dr. Liliana I. Duarte, ETH Zurich Nuclear Fuels Group, Laboratory for Nuclear Materials, Paul Scherrer Institut, Switzerland
The main topics: Hydrogen-materials interactions; Hydrogen-deformation interactions; Hydrogen assisted cracking (HAC); Mechanistic differences between hydrogen-induced fracture at the tensile stress and subcritical crack growth; Multiscale, computational, and atomistic modeling of hydrogen embrittlement; Hydrogen mapping and novel critical experiments; Hydrogen embrittlement mechanisms; Materials mechanical response at different scales; Hydrogen embrittlement and fatigue; Hydrogen embrittlement and damage-industrial case studies; Other (HIC, HSC, HTHA, hydride embrittlement...).
Link - "Hydrogen Embrittlement" Special Symposium, ECF23: https://www.ecf23.eu/thematic-symposia/ Link - "Hydrogen Embrittlement" Special Symposium, Flayer: http://www.ecf23.eu/ECF23_TC10B.pdf
Please send by email your expression of interest with a tentative title of your presentation together with the name, affiliation and email address of the corresponding author and the names of co-authors before December 31, 2019. to: mdjukic@mas.bg.ac.rs (Milos B. Djukic, Associate Prof., Special Symposium chair)
Please feel free to submit your Abstracts online before February 1, 2020. (https://www.ecf23.eu)
We are looking forward to hearing from you and working closely with you for the organization of a successful Symposium.
Warm regards, Milos B. Djukic
 
Milos Djukic
added an update
Dear colleagues, Project participants, and followers,
First Announcement: TC10 B "Hydrogen Embrittlement" Special Symposium with a round table and panel discussions: "The Current State of the Art in Hydrogen Embrittlement Understanding"
within the European Conference on Fracture - ECF23, Funchal, Madeira, Portugal, June 27 – July 3, 2020. (https://www.ecf23.eu).
Organized by
Milos B. Djukic, Associate Prof. 1,
Prof. Hrihoriy Nykyforchyn 2,
Prof. Jesús Toribio 3,
Motomichi Koyama, Associate Prof. 4 and
Prof. Andrej Atrens 5
1 University of Belgrade, Faculty of Mechanical Engineering, Department of Engineering Materials and Welding, Serbia
2 National Academy of Sciences of Ukraine, H. V. Karpenko Physico-Mechanical Institute, Ukraine
3 Universidad de Salamanca, Materials Engineering Department, Spain
4 Tohoku University, Institute for Materials Research, Japan
5 The University of Queensland, School of Mechanical and Mining Engineering, Australia
Link - "Hydrogen Embrittlement" Special Symposium: https://www.ecf23.eu/thematic-symposia/
Link - "Hydrogen Embrittlement" Special Symposium, Flayer: http://www.ecf23.eu/ECF23_TC10B.pdf
  • Our aim is to bring together top scientists and researchers in the field of hydrogen embrittlement in order to present the latest achievements, the current state of the art and the future research framework in understanding anding hydrogen embrittlement phenomena.
  • The main objective of this Special Symposium with a round table and panel discussions is to enable open and productive dialogue between all disciplines which study hydrogen embrittlement phenomena from any scientific or technological perspective and which in turn are being transformed by continuous advances in materials science and technology.
  • The idea is to attract top researchers in hydrogen embrittlement phenomena to participate with papers and to join the Special Symposium with a round table and panel discussions.
  • The main topics: Hydrogen-materials interactions; Hydrogen-deformation interactions; Hydrogen assisted cracking (HAC); Mechanistic differences between hydrogen-induced fracture at the tensile stress and subcritical crack growth; Multiscale, computational, and atomistic modeling of hydrogen embrittlement; Hydrogen mapping and novel critical experiments; Hydrogen embrittlement mechanisms; Materials mechanical response at different scales; Hydrogen embrittlement and fatigue; Hydrogen embrittlement and damage-industrial case studies; Other (HIC, HSC, HTHA, hydride embrittlement...).
Please send by email your expression of interest with a tentative title of your presentation together with the name, affiliation and email address of the corresponding author and the names of co-authors before December 31, 2019. to: mdjukic@mas.bg.ac.rs (Milos B. Djukic, Associate Prof., Special Symposium chair)
Please feel free to submit your Abstracts online before February 1, 2020. (https://www.ecf23.eu)
We are looking forward to hearing from you and working closely with you for the organization of a successful Symposium.
Warm regards,
Milos B. Djukic
 
Milos Djukic
added a research item
In this study, two erosion protection MMC coatings with WC particles were deposited by the plasma transferred arc (PTA) welding. One of the coatings with tungsten carbide WC in the NiBSi matrix (WC/NiBSi), and the second coating WC in NiCrBSi matrix (WC/NiCrBSi) was deposited by the flame spray process on the same substrate material S235JR steel. Experiments were performed using a gas blast sand erosion test facility with high-velocity erodent particles impact (approximately 100 m/s) at different particle impact angles (20°-45°), with an objective to study erosion wear characteristics and mass loss of two MMC coatings. Microstructural characterization of MMC coatings was done by scanning electron microscope equipped with energy-dispersive X-ray spec-troscopy, whereas X-ray diffraction analysis was used for identification of present phases. The hardness of coatings was determined by Vickers hardness measurements. WC/ NiBSi obtained by the PTA process shows superior hardness and erosion properties.
Milos Djukic
added an update
Dear colleagues and friends,
I am pleased to inform you that these three additional research papers from Belgium, UK, and Canada about hydrogen embrittlement phenomena, together with 16 other papers, were also published in the special issue (SI) of Engineering Fracture Mechanics (EFM) journal entitled: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework".
1. The effect of hydrostatic stress on the hydrogen induced mechanical degradation of dual phase steel: A combined experimental and numerical approach
by T. Depover, S. Hertelé and K. Verbeken
2. Correlative analysis of digital imaging, acoustic emission, and fracture surface topography on hydrogen assisted cracking in Ni-alloy 625+
by David Martelo, Dhinakaran Sampath, Alberto Monici, Roberto Morana and Robert Akid
3. Evaluation of material susceptibility to hydrogen embrittlement (HE): An approach based on experimental and finite element (FE) analyses
by Tuhin Das, Esaie Legrand, Salim V. Brahimi, Jun Song and, Stephen Yue
Please also check other already published review papers (3) and research papers (12) in this SI at:
(A) PUBLISHED CRITICAL REVIEW PAPERS:
1. The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion by Milos B. Djukic, Gordana M. Bakic, Vera Sijacki Zeravcic, Aleksandar Sedmak and Bratislav Rajicic
2. The role of atomistic simulations in probing hydrogen effects on plasticity and embrittlement in metals by Ali Tehranchi and William A. Curtin
3. Overview of metastability and compositional complexity effects for hydrogen-resistant iron alloys: Inverse austenite stability effects by Motomichi Koyama, Cemal Cem Tasan and Kaneaki Tsuzaki
(B) PUBLISHED RESEARCH PAPERS:
4. Electrochemical hydrogen charging to simulate hydrogen flaking in pressure vessel steels by A. Laureys, J. Van Stappen, T. Depover, V. Cnuddeand and K. Verbeken
5. Strain-rate sensitivity of hydrogen-assisted damage evolution and failure in dual-phase steel: From vacancy to micrometer-scale void growth by T. Kumamoto, M. Koyama, K. Sato and K. Tsuzaki
6. Hydrogen partitioning behavior and related hydrogen embrittlement in Al-Zn-Mg alloys by Kazuyuki Shimizu, Hiroyuki Toda, Hiro Fujihara, Kyosuke Hirayama, Kentaro Uesugi and Akihisa Takeuchi
7. Unification of hydrogen-enhanced damage understanding through strain-life experiments for modeling by M.L. Martin, C. Looney, P. Bradley, D. Lauria, R. Amaro and A.J. Slifka
8. Simulation of the effect of internal pressure on the integrity of hydrogen pre-charged BCC and FCC steels in SSRT test conditions by Jean-Gabriel Sezgin, Osamu Takakuwa, Hisao Matsunaga and Junichiro Yamabe
9. Quasi-cleavage hydrogen-assisted cracking path investigation by fractographic and side surface observations by E.D. Merson, P.N. Myagkikh, V.A. Poluyanov, D.L. Merson and A. Vinogradovby
10. Temperature dependence of vacancy concentration and void growth mechanism in Al with constant hydrogen concentration: A first-principles study by Pengyu Liu and Ryosuke Matsumoto
11. A Theory of Critical Distances based methodology for the analysis of environmentally assisted cracking in steels by P. González, S. Cicero, B. Arroyo and J.A. Álvarez
12. In-situ microscale examination of hydrogen effect on fracture toughness: A case study on B2 and D03 ordered iron aluminides intermetallic alloys by Yun Deng, Bjørn Rune Sørås Rogne and Afrooz Barnoush
13. Hydrogen informed Gurson model for hydrogen embrittlement simulation by Haiyang Yu, Jim Stian Olsen, Antonio Alvaro, Lijie Qiao, Jianying Heand Zhiliang Zhang
14. A multi-scale analysis of the different interactions between defects and hydrogen: A review on the contribution of the elastic fields by G. Hachet, J. Li, A.M. Hallil, A. Metsue, Abdelali Oudriss, J. Bouhattate and Feaugas Xavier
15. Finite element simulation of hydrogen transport during plastic bulging of iron submitted to gaseous hydrogen pressure by Yann Charles, Monique Gasperini, Nicolas Fagnon, Kevin Ardon and Anthony Duhamel
16. Hydrogen enhanced fatigue crack growth rates in a ferritic Fe-3 wt %Si alloy and a X70 pipeline steel by Antonio Alvaro, Di Wan, Vigdis Olden and Afrooz Barnoush
This EFM special issue (SI) will collect contributions presented at ECF22 conference in Belgrade, 2018, ECF22 HE Special Symposium: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), with a round table and panel discussions, organized by: Milos Djukic, Associate Prof., Prof. William Curtin and Prof. Zhiliang Zhang.
HE Special Symposium FINAL - Programme:
HE Special Symposium - Participants list:
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
The SI of EFM Guest Editors
Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Dear colleagues and friends, Group collaborators, participants, and followers,
I am pleased to inform you that the critical review paper, published in the special issue entitled: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" of Engineering Fracture Mechanics (EFM) journal, at the highest position #1, is once again the most downloaded article from EFM in the last 90 days.
1. (#1 position) The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion
by Milos B. Djukic, Gordana M. Bakic, Vera Sijacki Zeravcic, Aleksandar Sedmak, and Bratislav Rajicic
The particular emphasis in this paper is given to the proposal of the novel and unified HELP + HEDE model based on the specific microstructural mapping of the dominant hydrogen embrittlement (HE) mechanisms with implications on the fracture process and resulting hydrogen-assisted fracture modes. Most up-to-date experimental and modeling approaches, current trends and future challenges in the investigation of the synergistic interplay of HE mechanisms in different grades of steel, including the most advanced, and iron, are also included and critically discussed.
Link-ResearchGate:
All papers published in the special issue reached great attention of the scientific community and have a lot of views and downloads in the last five months.
The SI of EFM (2019): "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework", Edited by Milos B. Djukic, William Curtin, Zhiliang Zhang and Aleksandar Sedmak (19 papers - 3 critical review papers):
Please check here the most downloaded articles from Engineering Fracture Mechanics in the last 90 days:
HE Special Symposium FINAL - Programme:
HE Special Symposium - Participants list:
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
The SI of EFM Guest Editors
Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Dear colleagues and friends, Group participants and followers,
I am pleased to inform you that two critical review papers, published within the special issue entitled: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" of Engineering Fracture Mechanics (EFM) journal, are among the most downloaded articles from EFM in the last 90 days.
1. The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion
by Milos B. Djukic, Gordana M. Bakic, Vera Sijacki Zeravcic, Aleksandar Sedmak and Bratislav Rajicic
Link providing 50 days' free access to this article at Elsevier: https://authors.elsevier.com/a/1ZSSz38l3Pqke
The particular emphasis in this paper is given to the proposal of the novel and unified HELP + HEDE model based on the specific microstructural mapping of the dominant hydrogen embrittlement (HE) mechanisms with implications on the fracture process and resulting hydrogen-assisted fracture modes. Most up-to-date experimental and modeling approaches, current trends and future challenges in the investigation of the synergistic interplay of HE mechanisms in different grades of steel, including the most advanced, and iron, are also included and critically discussed.
Link-ResearchGate:
2. The role of atomistic simulations in probing hydrogen effects on plasticity and embrittlement in metals
by Ali Tehranchi and William A. Curtin
The authors pointed out that because of their limitations, atomistic simulations may not be definitive, but they nonetheless provide considerable insight by supporting or contradicting conjectures and concepts proposed to rationalize experiments. In this review paper, the broad range of issues is discussed in more detail and also including previously unpublished studies on the effects of hydrogen on the bowout of the edge dislocations in iron and predictions of solute- drag by hydrogen in nickel. It also provides a "perspective" about what computational simulations and multiscale modeling of HE phenomena can and what they cannot do.
Link-ResearchGate:
IMPORTANT NEWS:
The dedicated webpage about this special issue of EFM is opened:
Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework
Edited by William Curtin, Zhiliang Zhang, Aleksandar Sedmak, Milos B. Djukic,
where you can check all published papers.
Link:
This EFM special issue (SI) will collect contributions presented at ECF22 conference in Belgrade, 2018, ECF22 HE Special Symposium: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), with a round table and panel discussions, organized by: Milos Djukic, Associate Prof., Prof. William Curtin and Prof. Zhiliang Zhang.
Best regards, Milos Djukic, William Curtin and Zhiliang Zhang The SI of EFM Guest Editors Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Dear colleagues and friends,
I am pleased to inform you that these two additional research papers about hydrogen embrittlement phenomena, foresaw in this special issue (SI) are also published. They will be collected soon together with other review and research papers (total 20) within the dedicated webpage about this SI.
1. In-situ microscale examination of hydrogen effect on fracture toughness: A case study on B2 and D03 ordered iron aluminides intermetallic alloys
by Yun Deng, Bjørn Rune Sørås Rogne and Afrooz Barnoush
Link:
2. Hydrogen informed Gurson model for hydrogen embrittlement simulation
by Haiyang Yu, Jim Stian Olsen, Antonio Alvaro, Lijie Qiao, Jianying He and Zhiliang Zhang
Link:
Please checked already published review papers (3) and research papers (8) in this SI in the previous posts (posted on July 16) within this Project with the same logo.
Check soon other upcoming papers in this SI by:
  • Prof. Xavier Feaugas, Université de La Rochelle, Laboratoire des Sciences de l’Ingénieur pour l’Environnement – LaSIE, La Rochelle, France
  • Dr. Yann Charles, Assistant Professor, Université Paris 13, Laboratoire des Sciences des Procédés et des Matériaux, LSPM, CNRS, France
  • Dr. Antonio Alvaro, SINTEF Industry, Department of Materials Integrity and Welding, Norway
  • Dr. Tom Depover, Ghent University, Department of Materials, Textiles and Chemical Engineering, Ghent, Belgium
  • Dr. Tuhin Das, McGill University, Department of Mining and Materials Engineering, Canada
This EFM special issue (SI) will collect contributions presented at ECF22 conference in Belgrade, 2018, ECF22 HE Special Symposium: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), with a round table and panel discussions, organized by: Milos Djukic, Associate Prof., Prof. William Curtin and Prof. Zhiliang Zhang.
HE Special Symposium FINAL - Programme:
HE Special Symposium - Participants list:
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
The SI of EFM Guest Editors
Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Theoretical study of AlN mechanical behaviour under high pressure regime
published in Theoretical and Applied Fracture Mechanics, 2019, 103, 102289
FREE to DOWNLOAD, 50 days' free access, Link: https://lnkd.in/gU-RKYv
Theoretical modeling has been performed using quantum mechanical calculations and computed values were compared with the experimental results when available. Structural properties, volume change and strain (dilatation) under high pressure has been investigated for various AlN phases. Elastic constants Cij for wurtzite, sphalerite and rock salt structure were calculated under pressure. Important mechanical properties were investigated; bulk modulus B, shear modulus K, Young's modulus E, Vickers hardness Hv, anisotropy, stiffness, Poisson's ratio, brittleness/ductility
Quantum mechanical calculations were performed using ab initio CRYSTAL17 code based on a linear combination of atomic orbitals (LCAO). Structure optimizations employed analytical gradients with respect to the atom positions, cell parameters, and a local optimizing routine, while for mechanical properties and high pressure calculations especially important was stress tensor obtained from the analytical gradient. Hybrid B3LYP (Becke’s three parameter) functional in combination with the correlation functional of Lee, Yang, and Parr method has been used in all calculations. due the best agreement with previous experimental and theoretical results.
 
Milos Djukic
added an update
Dear colleagues and friends,
I am pleased to inform you that these eight research papers about hydrogen embrittlement phenomena, foresaw in this special issue (SI) are already published. They will be collected soon together with other review and research papers (total 20) within the dedicated webpage about this SI.
1. Electrochemical hydrogen charging to simulate hydrogen flaking in pressure vessel steels
by A.Laureys, J. Van Stappen, T. Depover, V. Cnudde and K.Verbeken
Link:
2. Strain-rate sensitivity of hydrogen-assisted damage evolution and failure in dual-phase steel: From vacancy to micrometer-scale void growth
by T. Kumamoto, M. Koyama, K. Sato and K. Tsuzaki
Link:
3. Hydrogen partitioning behavior and related hydrogen embrittlement in Al-Zn-Mg alloys
by Kazuyuki Shimizu, Hiroyuki Toda, Hiro Fujihara, Kyosuke Hirayama, Kentaro Uesugi and Akihisa Takeuchi
Link:
4. Unification of hydrogen-enhanced damage understanding through strain-life experiments for modeling
by M.L. Martin, C. Looney, P. Bradley, D. Lauria, R. Amaro and A.J. Slifka
Link:
5. Simulation of the effect of internal pressure on the integrity of hydrogen pre-charged BCC and FCC steels in SSRT test conditions
by Jean-Gabriel Sezgin, Osamu Takakuwa, Hisao Matsunaga and Junichiro Yamabe
Link:
6. Quasi-cleavage hydrogen-assisted cracking path investigation by fractographic and side surface observations
by E.D. Merson, P.N. Myagkikh, V.A. Poluyanov, D.L. Merson and A. Vinogradov
Link:
7. Temperature dependence of vacancy concentration and void growth mechanism in Al with constant hydrogen concentration: A first-principles study
by Pengyu Liu and Ryosuke Matsumoto
Link:
8. A Theory of Critical Distances based methodology for the analysis of environmentally assisted cracking in steels
by P. González, S. Cicero, B. Arroyo and J.A. Álvarez
Link:
Check soon other upcoming papers in this SI by:
  • Prof. Zhiliang Zhang, Norwegian University of Science and Technology – NTNU, Department of Structural Engineering, Faculty of Engineering, Trondheim, Norway
  • Prof. Afrooz Barnoush, Norwegian University of Science and Technology – NTNU, Department of Mechanical and Industrial Engineering, Faculty of Engineering, Trondheim, Norway
  • Prof. Xavier Feaugas, Université de La Rochelle, Laboratoire des Sciences de l’Ingénieur pour l’Environnement – LaSIE, La Rochelle, France
  • Dr. Yann Charles, Assistant Professor, Université Paris 13, Laboratoire des Sciences des Procédés et des Matériaux, LSPM, CNRS, France
  • Dr. Antonio Alvaro, SINTEF Industry, Department of Materials Integrity and Welding, Norway
  • Dr. Tom Depover, Ghent University, Department of Materials, Textiles and Chemical Engineering, Ghent, Belgium
  • Dr. Tuhin Das, McGill University, Department of Mining and Materials Engineering, Canada
  • Dr. Xiaofei Guo, Steel Institute, RWTH Aachen University, Aachen, Germany
This EFM special issue (SI) will collect contributions presented at ECF22 conference in Belgrade, 2018, ECF22 HE Special Symposium: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), with a round table and panel discussions, organized by: Milos Djukic, Associate Prof., Prof. William Curtin and Prof. Zhiliang Zhang.
HE Special Symposium FINAL - Programme:
HE Special Symposium - Participants list:
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
The SI of EFM Guest Editors
Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Dear colleagues and friends,
I am pleased to inform you that the three comprehensive review papers about hydrogen embrittlement phenomena, foresaw in this special issue (SI) are published. They will be collected soon together with other papers within the dedicated webpage about this SI.
1. Review:
The role of atomistic simulations in probing hydrogen effects on plasticity and embrittlement in metals
by Ali Tehranchi and William A. Curtin
The authors pointed out that because of their limitations, atomistic simulations may not be definitive, but they nonetheless provide considerable insight by supporting or contradicting conjectures and concepts proposed to rationalize experiments. In this review paper, the broad range of issues is discussed in more detail and also including previously unpublished studies on the effects of hydrogen on the bowout of the edge dislocations in iron and predictions of solute- drag by hydrogen in nickel. It also provides a "perspective" about what computational simulations and multiscale modeling of HE phenomena can and what they cannot do.
Link:
2. Review:
Overview of metastability and compositional complexity effects for hydrogen-resistant iron alloys: Inverse austenite stability effects
by Motomichi Koyama, Cemal Cem Tasan and Kaneaki Tsuzaki
The authors simultaneously investigate two alloy-design strategies for hydrogen-resistant steels: the effect of ε-stability and effect of compositional complexity. This review paper introduces further details and highlighting the importance of compositional complexity for hydrogen resistance.
Link:
3. Review:
The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion
by Milos B. Djukic, Gordana M. Bakic, Vera Sijacki Zeravcic, Aleksandar Sedmak and Bratislav Rajicic
The particular emphasis in this paper is given to the proposal of the novel and unified HELP + HEDE model based on the specific microstructural mapping of the dominant hydrogen embrittlement (HE) mechanisms with implications on the fracture process and resulting hydrogen-assisted fracture modes. Most up-to-date experimental and modeling approaches, current trends and future challenges in the investigation of the synergistic interplay of HE mechanisms in different grades of steel, including the most advanced, and iron, are also included and critically discussed.
Link:
This EFM special issue (SI) will collect contributions presented at ECF22 conference in Belgrade, 2018, ECF22 HE Special Symposium: "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), with a round table and panel discussions, organized by: Milos Djukic, Associate Prof., Prof. William Curtin and Prof. Zhiliang Zhang.
HE Special Symposium FINAL - Programme:
HE Special Symposium - Participants list:
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
The SI of EFM Guest Editors
Organizers of the ECF22 HE Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added 4 research items
Hydrogen embrittlement is a common, dangerous, and poorly understood cause of failure in many metal alloys. In practice, it is observed that different types of damage to industrial components have been tied to the presence and localization of hydrogen in metals. Many efforts have been made at understanding the effects of hydrogen on materials, resulting in an abundance of theoretical models and papers. However, a fully developed and practically-applicable predictive physical model still does not exist industrially for predicting and preventing hydrogen embrittlement. The connection of microstructure-based behaviors of materials and effects on the macroscopic measurable characteristics (stress levels, hardness, strength, and impact toughness) is of the utmost importance to achieve a unified model for hydrogen embrittlement. This paper gives an overview of the application of a model for structural integrity analysis of boiler tubes made of plain carbon steel exposed during operation to a local corrosion process and multiple hydrogen assisted degradation processes: hydrogen embrittlement and high-temperature hydrogen attack. The model is based on the correlation of mechanical properties to scanning electron microscopy fractography analysis of fracture surfaces in the presence of simultaneously active hydrogen embrittlement micro-mechanisms. The proposed model is practical for use as a predictive maintenance in power plants, as it is based on the use of standard macro-mechanical tests. Copyright © 2016 NACE International. All rights reserved.
The EU-NoE aims to strengthen scientific and technological excellence by developing an integrated and interdisciplinary understanding of materials technology, and co-evolution with science, industry and society, and also by addressing the fragmentation of the European research in this area. Its main objective is to enable an open and productive dialogue and free online collaboration tools in accordance with the growing R&D networking demands between all disciplines which study materials science from any scientific or technological perspective and which in turn are being transformed by continuous advances within the European Union and worldwide.
Grzegorz Lesiuk
added a research item
In offshore structures, the consecutive environmental and operational loading lead to an ever-changing stress state in the topside structure as well as in the substructure, which for offshore jacket-type platforms (called of fixed offshore structures) commonly used, result in fatigue damage accumulation. A wide variety of codes and recommended practices provide approaches in order to estimate the fatigue damage in design phase and remaining life in existing structures. In this research work, fatigue damage accumulation analyses applied to an offshore jacket-type platform using hot-spot stress and notch strain approaches are presented. These analyses are performed using wave information from the scatter diagram collected in North Sea. The wave loads used in this analysis were obtained using the Stokes 5th order wave theory and Morrison formula. The jacket-type offshore structure under consideration has a total height of 140.3 meters, a geometry at mud line of 60×80 meters and composed by tubular elements.
Milos Djukic
added 6 research items
Characterization of metal degradation after prolonged service is necessary for evaluating component exhaustion and its remaining service capability. Martensitic steel X20CrMoV 12.1 has been extensively used as a material for tubing systems and pipelines in thermal power plants. This paper compares data provided by two imaging techniques. Following tests were performed: impact testing at different temperatures and characterization of fracture surfaces of Charpy specimens by scanning electron microscope and 3D digital optical microscope. In this study three new geometrical characteristics were established, as a measure of the ductility change of material.
Comparative analysis of a repaired and a new crane wheel, was performed in Steelworks Smederevo, including an economic analysis and technological procedures. The repair procedure for a crane wheel is presented, along with the selection of filler materials, as well as testing of mechanical properties performed on samples taken from hard faced welds. The advantages of repair techniques compared to the manufacturing of a new wheel are shown, but also the flaws that may affect the worklife and integrity of wear-damaged elements and components.
In this paper we presented and discussed the capabilities of Serbian Network of Excellence (NoE) in materials characterization that aims to strengthen scientific and technological excellence by developing an integrated and interdisciplinary scientific understanding of materials characterization of engineering materials and their co-evolution with science, materials science, industry and society. Proposed research framework in hydrogen embrittlement refers to the challenges and most obvious problems of how to link models, phenomenology and morphology of different materials failures of industrial components at different scales and how to successful translate the insights gained into outcomes of practical value to the engineering community
Milos Djukic
added an update
Dear colleagues and friends,
Tentative date for the publication of ECF22 Proceedings in Procedia Structural Integrity journal by Elsevier is 31st December 2018.
website: www.ecf22.rs
ECF22 Book of Abstracts is available here:
Best regards,
Milos Djukic
 
S. Stanzl-Tschegg
added a research item
Lossening of implants due to electrochemical processes
Milos Djukic
added a research item
Hydrogen evolution and permeation occur during electroplating, corrosion, and cathodic protection. Hydrogen accumulates in areas of high stress and may reach a critical concentration, potentially causing fractures and catastrophic damage. This chapter describes hydrogen permeation and hydrogen-induced damage in metals and alloys. It also discusses hydrogen evolution kinetics, theoretical diffusion solutions, and basic hydrogen permeation models. Models are used as a diagnostic tool to determine the effectiveness of various metals and alloys as hydrogen permeation inhibitors. It then explains experimental atomic hydrogen permeation transient determination and hydrogen absorption rate constants and diffusivity evaluation into metals using case studies. Hydrogen embrittlement, hydrogen-induced cracking, hydrogen blistering, and hydrogen stress cracking are also discussed to show the relationship to hydrogen permeation and hydrogen-induced cracking mechanisms. Finally, various techniques used to prevent and control hydrogen damage of metals and alloys are described.
Milos Djukic
added an update
After consulting the three Co-Editors-in-Chief (A.R. Ingraffea, M. Kuna and X.Q. Feng) of Engineering Fracture Mechanics (EFM) journal, it's my pleasure to inform you that our proposal for the Special Issue of Engineering Fracture Mechanics is accepted.
The Special Issue of Engineering Fracture Mechanics (EFM) Journal (Impact Factor: 2.580 – 2017) will be devoted to the selected papers presented at the Special Symposium - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" (HE Special Symposium), within the framework of the 22nd European Conference on Fracture - ECF22 (HE Special Symposium, ECF22 - http://www.ecf22.rs/minisymp.html - click on More Info...).
HE Special Symposium - Announcement, Invited speakers (11) and Participants list: http://www.ecf22.rs/docs/vodonicni%20simp.pdf
The 22nd European Conference on Fracture - ECF22 will be held from 26. to 31. August, 2018. in Belgrade, Serbia (http://www.ecf22.rs/).
The title of the Special Issue (SI) of Engineering Fracture Mechanics (EFM) journal as to appear on Science Direct / in print:
"Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework"
The SI of EFM Guest Editors:
  • Milos B. Djukic, Associate Prof. (Managing Guest Editor of the SI ), Department of Engineering Materials and Welding, University of Belgrade, Faculty of Mechanical Engineering, Serbia (The chair of the HE Special Symposium, ECF22 - http://www.ecf22.rs/minisymp.html - click on More Info...),
  • Prof. William Curtin, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland (Member of EFM Editorial Advisory Board and the co-chair of the HE Special Symposium, ECF22),
  • Prof. Zhiliang Zhang, Norwegian University of Science & Technology NTNU, Trondheim, Norway (Member of EFM Editorial Advisory Board and the co-chair of the HE Special Symposium, ECF22) and
  • Prof. Aleksandar Sedmak, Department of Engineering Materials and Welding, University of Belgrade, Faculty of Mechanical Engineering, Serbia (The Chair of ECF 22 - http://www.ecf22.rs/).
The number of expected papers to be published in this Special Issue is 15-22.The SI of EFM - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" Announcement:
  • The selected authors of papers presented at the HE Special Symposium, during ECF22 conference, will be invited by the EFM SI Guest Editors to submit the full papers for publication in the SI of EFM - "Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework".
  • With publications related to ECF22, there are special agreements between EFM, ESIS and the ECF22 chairman Prof. Aleksandar Sedmak: All papers of this conference will be published first in the proceedings: “Procedia Structural Integrity” as short version (max. 8 pages).
  • A Special Issue will be made out of selected contributions (the decision will be made by the SI Guest Editors after the ECF22 conference), and the mandatory requirement is: The content of the full publication in EFM must contain more than 50% new stuff to be accepted as original research contribution.
  • Authors have to submit together with their EFM paper their former short version published in the ECF22 proceeding.
We are looking forward to seeing you Belgrade during ECF22.
Best regards,
Milos Djukic, William Curtin and Zhiliang Zhang
Organizers of the ECF22 HE Special Symposium - ""Recent Advances on Hydrogen Embrittlement Understanding and Future Research Framework" with a round table and panel discussions.
 
Milos Djukic
added an update
Deadline to submit full papers is EXTENDED. New papers submission deadline: July 31.
The 22nd European Conference on Fracture - ECF22 will be held from 26. to 31. August, 2018. in Belgrade, Serbia.
 
Milos Djukic
added an update
ECF22 Symposia announcement on the European Structural Integrity Society (ESIS) website: http://www.structuralintegrity.eu/site/blog-dynamic/104-ecf22-symposia
The ECF22 conference is organized by the European Structural Integrity Society - ESIS (http://www.structuralintegrity.eu/) and Society for Structural Integrity and Life "Prof. dr Stojan Sedmak".
Please submit your Abstracts online before January 31, 2018. (http://www.ecf22.rs/authorinfo.html)
The aim of ESIS (European Structural Integrity Society) is to develop and extend knowledge in all aspects of Structural Integrity and disseminating that knowledge world-wide with the objective of improving the safety and performance of engineering equipment, individual components and structures.
 
Milos Djukic
added an update
22nd European Conference on Fracture - ECF22, 25 - 26 August 2018, Belgrade, Serbia
The full title of the conference is Loading and Environment Effects on Structural Integrity.
The conference is organized by the European Structural Integrity Society - ESIS (http://www.structuralintegrity.eu/) and Society for Structural Integrity and Life "Prof. dr Stojan Sedmak".
Please submit your Abstracts online before January 31, 2018. (http://www.ecf22.rs/authorinfo.html)
Here is the official announcement for the ECF22 conference on Elsevier’s website – Engineering Fracture Mechanics journal:
  • All contributions in the form of extended abstracts will be peer reviewed. Abstracts will be published in the form of ECF22 e-book and available during the registration. Full papers will be published in an open access Procedia Structural Integrity journal by Elsevier in the form of ECF22 Proceedings. (https://www.journals.elsevier.com/procedia-structural-integrity)
  • A selection of papers presented at ECF22 and at the ECF22 Special Symposium will be published in a Special Issue of International journals by Elsevier affiliated with the European Structural Integrity Society - ESIS: International Journal of Fatigue, Engineering Failure Analysis, Engineering Fracture Mechanics and Theoretical and Applied Fracture Mechanics. (http://www.structuralintegrity.eu/site/home/journal)
International journal by Elsevier affiliated with the European Structural Integrity Society - ESIS:
 
Milos Djukic
added an update
Dear Colleagues,
We invite you to submit an abstract to the 22nd European Conference on Fracture - ECF22 to be held in Belgrade, Serbia, 26-31 August 2018 (see http://www.ecf22.rs/).
The deadline for the abstracts is 31 January 2018.
ECF22 Second Announcement is in the attachment.
Minisymposia:
Plenary Lectures
  • Jim Rice, Boston, USA, Perspectives on dynamic fracture arising from study of earthquake ruptures
  • Jovo Jaric, Serbia, Conservation laws of J integral type
  • Youshi Hong, China, The State of the Art in Very-High-Cycle Fatigue Research
  • Uwe Zerbst, Germany, Application of fracture mechanics to S-N curve prediction. Requirements and perspectives
  • Drazan Kozak, Croatia & Nenad Gubeljak, Slovenia, Fracture behavior of wrought and additive manufactured implant’s alloy
  • Yonggang Huang, USA Robert Ritchie, USA, Damage Tolerance in Biological and Metallic Material
  • Takayuki Kitamura, Japan, Challenge toward Nanometer Scale Fracture Mechanics
  • William Curtin, Switzerland, Mechanisms of Hydrogen Embrittlement: Insights from Atomistic Studies
  • Meinhard Kuna, Germany, Micromechanical Modeling of Fracture in Metallic Materials
With best regards,
ECF22 Organizing Committee
 
Milos Djukic
added an update
ESIS -Elsevier Young Scientist Award (ECF22)
Please check document: "ESIS – ELSEVIER YOUNG SCIENTIST AWARD" in the attachment.
22nd European #Conference on Fracture - ECF22, Belgrade, Serbia, 26–31. August 2018
"LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY"
The deadline for the abstracts is 31 January 2018.
 
Milos Djukic
added an update
European Structural Integrity Society - ESIS support and ESIS Awards for ECF22.
Please check document: "ESIS Support for Researchers Announcement" in the attachment.
22nd European #Conference on Fracture - ECF22, Belgrade, Serbia, 26–31. August 2018
"LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY"
The deadline for the abstracts is 31 January 2018.
 
Emad Hosseinpour
added an update
Slim-Floor system,
feasibility of Web Opening resisting the shear load
 
José A.F.O. Correia
added a project goal
Dear Colleagues,
I invite you to submit an abstract to the Symposium
Risk analysis and Safety of Technical Systems
organized by Technical Committee 12 “Risk analysis and Safety of Large Structures and Components (RAS TC 12)” of the European Structural Integrity Society within the framework of the 22nd European Conference on Fracture - ECF22 to be held in Belgrade, Serbia, 26-31 August 2018 (see http://www.ecf22.rs/).
The deadline for the abstracts is 31 January 2018.
This Symposium is intended to be a forum of discussion of the recent advances in maintenance, safety, risk analysis, management and life-cycle performance of a wide range of infrastructures, such as, engineering technical systems, bridges, buildings, dams, railways, underground constructions, wind and transmission towers, offshore platforms, pipelines, naval vessels, ocean structures, nuclear power plants, airplanes and other types of structures including aerospace and automotive structures are considered. It is expected contributions from engineers, metallurgists, material scientists, among others, allowing a very multidisciplinary discussion.
All contributions in the form of extended abstracts will be peer reviewed by the members of ESIS TC12 Technical Committee. A selection of papers presented at this Symposium will be published in a Special Issue on associated ESIS journals (International Journal of Fatigue, Engineering Failure Analysis, Engineering Fracture Mechanics, Theoretical and Applied Fracture Mechanics).
The ESIS technical committee “TC12 - Risk Analysis and Safety of Large Structures and Components” supports the Minisymposium. The annual meeting of the TC12 will be performed during the conference event.
IMPORTANT:
1) When submitting your abstract please mention the name of Symposium - “Risk analysis and Safety of Technical Systems”.
2) Please inform us about your submission/intention to submit so that we could plan Symposium’s sessions (jacorreia@inegi.up.pt)
With best regards,
José Correia, Vladimir Moskvichev and Aleksandar Sedmak
ESIS TC12 Chairs