Finite Element Analysis - Science topic

The extent of damage to historic structures is influenced by several factors, including the magnitude and distribution of static and dynamic loads applied over time, as well as fluctuations in the stability level that lead to nonlinear behavior. In this study, the nonlinear behavior of the Si-o-Se Pol Bridge in Isfahan is investigated with respect...

The present article aims to explore the non-standard plastic behaviour that occurs in masonry structures when considering a finite Coulomb friction, by starting from the equilibrium analysis of an interesting case study inspired by an unconventional architectural element, i.e., the flat arch crowning the transept portal in the Prato Cathedral, char...

This study combines various computational methods informed by statistical data from experimental Compact Tension (CT) testing to simulate progressive damage evolution in composites, including their uncertainty. First, efficient Finite Element Analysis (FEA) is employed to generate large datasets. Second, a global sensitivity analysis identifies inf...

Objective The distribution and size of the zone of the centers of resistance (ZCR) are critical for accurate orthodontic treatments and minimizing unexpected tooth movements. However, this information remains unclear for mandibular incisors and canines. This study aims to address these gaps in knowledge. Methods Finite element models of four inc...

Viscoelastic (VE) dampers are capable of dissipating energy over a variety of input vibration frequencies. They supplement both displacement‐ and velocity‐dependent restoring forces, thus, provide both stiffness and damping to the structure. For this, they are able to effectively mitigate both frequently occurring wind loads and seismic forces. The...

This paper presents the results of the study on the possibility of replacing the roller bearings of CM 120L concrete mixers with sliding bearings made of Necuron 1050. In order to carry out the study, the radial stresses located in planes normal to the axis of symmetry of a sliding bearing in the cantilever of the material Necuron 1050, were determ...

A self-powered piezoelectric material-based sensor has miniaturization and mass production capabilities. The finite element analysis shows results prior to device fabrication, which discover potential defects in the design, improve sensor performance, and lead to cost-effective fabrication. This study reveals the trade-offs between sensitivity and...

This paper develops a finite element analysis model to investigate the seepage characteristics of cement sheaths, considering the flow properties of their porous medium. The model’s applicability under various conditions was evaluated through grid sensitivity tests and model validation, indicating that it effectively captures the seepage behavior o...

Accurately predicting the State of Health (SOH) of new energy vehicle batteries is critical for ensuring their reliable operation and extending battery’s service life. To address the issue of low SOH prediction accuracy across different prediction lengths, this paper proposes a prediction method based on long-short-term battery degradation feature...

There are significant discrepancies between the experimental results and numerical analysis outcomes for steel-reinforced concrete-filled steel tubular (SRCFST) columns. This is primarily due to the lack of understanding of the confinement mechanisms of SRCFST and the corresponding models for confined concrete. Therefore, based on the confinement m...

The seismic damage of underground structures has been extensively investigated, and it has been demonstrated that underground structures located at weak interlayer sites are more prone to damage. In this study, a two-story two-span rectangular frame subway station structure is analyzed. A two-dimensional soil-underground structure model is develope...

The main application of steelmaking slag is base course material for road construction. In order to utilize slag as a base course material, it must possess the various characteristics specified in the relevant standard. Among these, the modified California Bearing Ratio (CBR) value, which evaluates performance as a base course material, is an impor...

This study focuses on the development and evaluation of the OrthoNail hybrid intramedullary implant for lower limb lengthening in patients requiring significant skeletal reconstruction. The implant addresses the challenges in load-bearing during rehabilitation, providing a robust solution that is capable of supporting physiological loads. Mechanica...

It is a very common practice in several countries to find service pipes passing through beams transversely and vertically during construction. This practice has the potential of threatening the full-strength capacity of the structural element. This paper presents an experimental and numerical investigation on the flexural, deflection and crack perf...

This study investigates the influence of bow pretension force on the performance and tone of the violin through theoretical modeling, finite element analysis, and experimental verification. Theoretical modeling was used to establish the initial shape and bending characteristics of the bow. Through a multi-objective genetic algorithm, the material p...

In recent years, compliant mechanisms have been widely applied across various fields due to their unique functionalities and superior attributes, demonstrating tremendous development potential and playing critical roles in several key areas. However, the distinct motion characteristics of compliant mechanisms necessitate the consideration of numero...

Background The location and size of necrotic lesions are important factors for collapse, The preserved angles (PAs) are divided into anterior preserved angle (APA) and lateral preserved angle (LPA), which could accurately measure the location of necrosis lesion. We used them to evaluate the effect of the location and size of necrotic lesions on col...

This paper presents a new innovative approach for designing and manufacturing a fixture for locating and clamping porous blocks of biocompatible material, which is required for their machining on CNC machines. Manufacturing porous blocks for their application in medical and/or dental fields is gaining traction. However, limited solutions are availa...

A significant portion of the environmental impact of a building’s superstructure lies in its structural flooring. By leveraging funicular forms such as thin concrete shells, a materially and carbon-efficient alternative to bending-active flooring systems can be attained. In addition, through segmentation and the use of dry jointed interfaces, a seg...

The reverse engineering method has been beneficial for personalized implant designs in the medical field due to its flexible use feature that allows it to be applied in many areas. The method of anatomical features (MAF) is commonly used for fractures of the bone for the development of plate fixation. To improve the geometrical fitting between plat...

This study introduces a novel method for predicting horizontal displacement in riverbank retaining walls, with a specific focus on the riverbank in Ho Chi Minh City, Vietnam. Employing finite element analysis (FEA) in conjunction with linear regression, the research establishes a predictive formula tailored to the unique geological conditions of th...

This work deals with optimizing the synthesis error in an eight‐bar Peaucellier—Lipkin mechanism, for its dimensional synthesis and applications in load‐lifting machines. A new method for the formulation of the problem of maximizing the objective function is proposed and makes it possible to obtain from the PSO algorithm a minimum synthesis error e...

The average contact stress–settlement behavior observed in plate load tests provides essential data for reliable foundation design. However, the test plate is often smaller than the actual foundation, requiring size extrapolation to interpret in situ plate load test results accurately. This study combines in situ plate load test results in gravelly...

This paper presents a novel Q-value-based formability assessment for optimizing deep drawing processes. The Q-value, derived from thinning limit diagrams (TLDs), uses offset thinning and wrinkling limit curves to define severity levels. It is calculated by summing the product of Pascal’s triangle weighting factors and normalized element counts with...

This study introduces an analytical model for analyzing thermomechanical stresses in finite-length hyperelastic hollow cylinders under axial-torsional loading and non-isothermal conditions. The model incorporates an axial temperature distribution and decomposes strain responses into thermal expansion and mechanical stretches. Governing equations ar...

APM stands for autonomous people mover, which is a mass transit system widely used in many airports to transport passengers between terminals. This article focuses on APM structure newly designed comprising five components namely, chassis, floor, body, roof, and support. The objective of this article is to estimate the strength and fatigue of each...

The electromagnetic characteristics of a single-phase permanent magnet linear oscillation actuator are analyzed by the finite element method. Firstly, the basic structure and operation principle of the linear oscillation actuator are introduced. The internal stator slot and arc tooth are used to reduce the detent force. According to the principle o...

Ensuring handrails structural integrity and safety in industrial hopper systems is crucial for worker protection and operational efficiency. This study investigates handrail systems design, stress analysis, and safety factors using Finite Element Analysis (FEA) via SolidWorks. Observations of existing systems revealed deficiencies such as improper...

Arterial stenosis, a narrowing of the artery, significantly impacts blood flow dynamics and heat transfer. Although this phenomenon has been studied broadly, there is very less study about the complex interactions between nonNewtonian blood behavior, complicated artery geometry and temperature fluctuations. Using the Sisko model to represent the no...

This paper presents a comparative study of the fatigue life of solder joints in a board-level Ball Grid Array (BGA) assembly. It specifically contrasts the commonly used SAC305 alloy with the advanced Innolot-based solder alloy, recognized for its superior tensile strength. Through Finite Element Analysis (FEA), we simulate and predict the reliabil...

Predicting the mechanical response and damage evolution of elastomers under large deformation is of great significance in engineering applications. In this work, a finite element (FE) scheme is formulated and used to simulate rate-dependent damage in elastomers. While based on the theoretical model of Lavoie et al. (Extrem Mech Lett 8:114–124, 2016...

With its strong mechanical properties, graphene has shown potential in applications for reducing friction and wear, but the underlying mechanisms for its macroscopic lubrication remain relatively unexplored. Here, we systematically study the lubrication effect of chemical vapor deposition graphene coated on the surfaces of macroscopic friction pair...

Metal additive manufacturing (AM) has grown in recent years to supplement or even replace traditional fabrication methods. Specifically, the laser powder bed fusion (LPBF) process has been used to manufacture components in support of sustainment issues, where obsolete components are hard to procure. While LPBF can be used to solve these issues, muc...

During the assembly process, deformation occurs in composite thin-walled parts, leading to damage at the hole connections of their single-longitudinal splice (SLS) joints. To predict assembly damage in the design process, it is usually necessary to combine uncertainty analysis with finite element analysis (FEA) methods. However, this field has limi...

With the advancement of the modern mechanical engineering industry, a robotic arm, or even a robot, has become a mature technology widely used in production and manufacturing. As the market gradually comes to life and the demand for robotic arm precision increases, the significance of this technology continues to grow. This study has proposed a mul...

In the automotive industry, extensive research has been conducted to eliminate factors negatively impacting product quality, such as wrinkles, cracks, and thickness distribution in components. The application of drawbeads often relies on the experience of field workers, leading to considerable trial and error before stabilizing the production proce...

Expansive soil is considered one of the most important causes of the collapse of buildings and facilities. There are many factors affecting the stability of structures constructed on expansive soils. In this paper, the numerical analysis using Plaxis 3D commercial software v.24 was carried out on the swelling soil obtained from Al-Azhar university...

Objectives: This study aimed to compare the effects of surgically assisted rapid palatal expansion (SARPE) techniques and their combinations on the stresses (von Mises, maximum principal, and minimum principal) and displacements that occur in the maxilla, facial bones, and maxillary teeth using three-dimensional finite element analysis (FEA). Metho...

Silicon‐carbon composites (Si/C) with multistage structures enable structural integrity during cycling. However, the lack of controllable structure preparation on a large scale hinders the stability improvement in practical applications. Herein, a new strategy is proposed to synthesize kilogram‐scale Si/C (PySi/C) featuring a dual‐model carbon stru...

At very low temperatures, typically ductile materials, especially body-centered cubic (BCC) steels, often exhibit an abrupt transition to brittle fracture, significantly limiting their applicability in cryogenic and low-temperature environments. This challenge arises from the inherent properties of BCC steels, where ductility is drastically reduced...

This study investigates the mechanical behavior of cover-plate reinforced connections in steel frames with I-section columns and middle- or wide-flange H-beams, addressing gaps in current design standards. Finite element analyses validated by experimental data were employed to explore the effects of cover-plate geometry—shape, length, and thickness...

In soft lithography roof collapse is frequently observed on the stamp surface consisting of rectangular micro-grooves which yields unwanted contact between the sagged surface and the substrate. Deep understanding of the adhesive contact behavior is a key to design of high-performance collapse-resistant stamp. Both theoretical and numerical studies...

The cyclic behavior of reinforced concrete (RC) beam-column joints (BCJs) is still one of the critical issues in structural engineering. In this context, for the purpose of gaining a more in-depth insight about the sophisticated behavior of BCJs under cyclic loading scenarios, the current work aims to investigate the cyclic behavior of reinforced c...

Slamming load effects are critical for high-speed vessels and they should be considered during design. Modifying the vessel's primary hull structure to account for underpredicted slamming loads on the hull girder is very costly after the vessel is built; as such, the effect of slamming and whipping loads on longitudinal hull girder strength should...

The rapid expansion of the construction sector has led to the development of many commercial and residential structures. This growth is further accelerated by increasing urbanisation, industrialisation, and population, resulting in a significant reduction in the availability of land for construction. Consequently, buildings are often constructed in...

The analysis of magnetic particle dynamics in a rotating magnetic field and the exploration of the magnetic agglomeration mechanism are crucial for effectively reducing agglomeration in strong magnetic minerals and improving sorting efficiency. The forces acting on magnetic particles in a rotating magnetic field were analyzed in this study. A 3D mo...

Ti6Al4V is a widely used titanium alloy known for its excellent combination of mechanical properties, corrosion resistance, and biocompatibility. However, to ensure its effectiveness in various applications, it is important to understand the mechanical and fracture behavior of the alloy in the presence of a notch. In the present study, the effect o...

For allowable defect analyses, the fracture toughness of materials needs to be accurately predicted. In this regard, a lower fluctuation of fracture toughness can lead to reduction in safety and economic risks. Crack tip opening displacement (CTOD), which is the representative parameter for fracture toughness, can be measured by various methods, su...

To prepare polymer foams with low‐density and high‐energy absorption efficiency, this study designs epoxy foaming experiments employing the Box–Behnken method and investigates the impact of process parameters on the microscopic geometric parameters and uniaxial compression response of foam. Finite element analysis models are created to investigate...

Background Transforaminal lumbar interbody fusion (TLIF) surgery has become increasingly popular in the surgical treatment of lumbar degenerative diseases. The optimal structure for stable double-segment fixation remains unclear. Objective To compare the biomechanical changes of unilateral fixation versus bilateral fixation in patients with lumbar...

This study presents the implementation of the asymptotic homogenization method (AHM) to predict the effective thermal conductivity of suspensions featuring core-shell particles. The AHM leverages the significant difference in scales between macroscopic and microscopic structures, making it possible to model the domain at multiple scales by capturin...

Purpose This study aims to investigate fundamental modal solutions for rectangular thin plates with four free edges: (1) to provide a novel criterion for fundamental mode identification, and (2) to derive high accurate explicit formulas for calculating the fundamental frequency. Method To achieve the study objectives, an investigation into the fun...

Predictive maintenance is essential for the implementation of an innovative and efficient structural health monitoring strategy. Models capable of accurately interpreting new data automatically collected by suitably placed sensors to assess the state of the infrastructure represent a fundamental step, particularly for the railway sector, whose safe...

Rice husk ash was used as a partial substitute for cement in concrete to reduce its cost, and alternative processing methods using agricultural waste. Therefore, the experiment was performed on conventional reinforced concrete beams M60 strength (M1) along with the RHA kept at 10% constant (M2) and the steel fibers varied as 0.5, 1.0, and 1.5% (M3–...

Lattice structures have great potential for several application fields ranging from medical and tissue engineering to aeronautical one. Their development is further speeded up by the continuing advances in additive manufacturing technologies that allow to overcome issues typical of standard processes and to propose tailored designs. However, the de...

Offshore working environment is complex and variable, and sometimes the grouting pipe is blocked and cannot be continued in the offshore wind power jacket foundation. In this paper, the effect of grouting interruption on the mechanical performance of jacket foundation connection was analyzed by numerical simulation. Firstly, a finite element analys...

The micro-cracking technique reduces the strength of the cement-stabilized base layer of pavement to free contracting stress, which would produce less severe shrinkage cracks and reduce reflective cracking on the top asphalt layer. Micro-cracking involves several passes of rolling on the cement-stabilized base during construction or reconstruction...

A comparison between fatigue crack growth experimental measurements and 3D FEA-based modeling solutions is provided in this study. The measurements were carried out on two 7050-T7451 specimens and complemented by post-failure fractography to relate marker bands identified on the crack surface to accumulated cycles during the mechanical testing proc...

The effect of combined vertical (V), moment (M), and horizontal (H) loading generated by wind, earth pressure, earthquake, and gravity loading is not realized in conventional foundation design. Despite the advantages of VMH failure envelopes, there is a lack of consideration of the serviceability, resulting in a new prospect recognized as design en...

Background Scoliosis is an idiopathic three-dimensional spine strain. The orthopedic parameter used to diagnose and evaluate the severity of the strain is Cobb’s angle. This study proposes using this clinical parameter to reproduce a digital twin of the spine, calculate biomechanical stress changes, and characterize idiopathic scoliosis deformity t...

Helical5AM-recently proposed by Gunpinar and Armanfar-offers a new helical additive manufacturing technique, where print-path orientations can be adjusted by setting helix lead angles and turn directions of the helical print-paths. The present work aims at optimizing the print-path orientations for a part under a certain loading condition. The part...

The waste problem in Kampung Cigoler RW.03 Cisolok Village is increasingly worrying, with a volume reaching 659,08 kg/day. One of the proposed solutions is a micro-scale incinerator with the main components of a burner, combustion chamber, and filtration system using mineral rocks and activated carbon. The de- sign of this incinerator considers its...