Elisabet Suarez Vargas

Elisabet Suarez Vargas
University of Granada | UGR · Building Engineering School

Civil Engineer, Technical Architect and Master in Acoustic Engineering

About

25
Publications
5,903
Reads
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346
Citations
Citations since 2017
18 Research Items
330 Citations
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20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060
Additional affiliations
November 2016 - December 2016
Tokyo Institute of Technology
Position
  • Visiting researcher
Description
  • -Participate in the Seminar on Technical English Communication. -Participate in the Todoroki-Mizutani Laboratoy activities. -Attendance the 8th International Conference on Acoustic Emission held at Kyoto, from 5th to 9th December 2016
February 2016 - May 2016
Universität Augsburg
Position
  • Visiting researcher
September 2014 - December 2014
University of California, Los Angeles
Position
  • Visiting researcher

Publications

Publications (25)
Article
Full-text available
Wood is very present in the structures of old buildings and real estate with historical value. Yet, as a biodegradable material, it is highly vulnerable to adverse environmental conditions, such as permanent high humidity and attacks by xylophages. Furthermore, being a natural material, wood has great potential for low-carbon building within a circ...
Article
Bamboo is a lignocellulosic material traditionally and increasingly appreciated as a structural material in construction within the context of a low-carbon circular bioeconomy. Evaluating changes in its basic mechanical properties when exposed to outdoor climatic conditions is of key importance. This paper describes bamboós behavior under compressi...
Article
Full-text available
The poplar wood industry chain from planted forests takes a strategic position for the creation of a competitive, profitable, and highly technological bioeconomy in the world. Niche sectors such as buildings can find in poplar wood an effective ally to reduce its carbon footprint and ecological backpack. For the poplar wood, it is important to unde...
Article
Full-text available
The paper presents an experimental analysis of the bending behavior of pine beams (Pinus Sylvester) retrofitted with fiber reinforced plastic (FRP) and poplar planks used as external covering. Poplar wood was chosen because of its rapid growth in planted forests, its homogeneity and attributes for sustainable local development, and high CO2 absorpt...
Article
Full-text available
The purchase price of any forest plantation depends on the quality of its raw wood, and specifically, variables such as density, orientation of the fibers, bending strength, and bending MoE (Modulus of Elasticity). The elastic waves propagation velocity has become one of the most popular parameters to evaluate the wood in standing trees. This study...
Article
Reinforced concrete (RC) flanged beam specimens were tested under incremental cyclic load till failure in flexure, and simultaneously, the acoustic emission (AE) signals released by the specimens were recorded. To assess damage in RC structures, a previously published index of damage (ID) based on AE signals was used. This index, however, needs to...
Article
A test specimen representing a scaled reinforced concrete frame structure with hysteretic dampers was subjected to sequential seismic simulations of incremental peak acceleration on a 3 × 3 m² shaking table. From this specimen, two beam–column connections—one exterior and one interior—were continuously monitored with wideband low-frequency acoustic...
Article
The paper deals with the application of the acoustic emission (AE) technique using multi-resonant sensors to complement the mechanical and visual evaluation of the adhesion between carbon FRP (CFRP) and pine wood by means of pull-off tests. The experimental work compares the behavior of pultruded laminates and carbon fabrics, as well as two types o...
Article
This paper proposes a methodology for monitoring of timber beams retrofitted with CFRP (Carbon Fiber Reinforced Polymer) via the acoustic emission technique (AE). The work proposes the use of multi-resonant sensors linearly distributed along the element. The spectral energy of the located AE events is proposed to separate the signals into two group...
Article
Full-text available
This paper proposes the monitoring of old timber beams with natural defects (knots, grain deviations, fissures and wanes), reinforced using carbon composite materials (CFRP). Reinforcement consisted of the combination of a CFRP laminate strip and a carbon fabric discontinuously wrapping the timber element. Monitoring considered the use and comparis...
Article
This paper proposes a new hybrid layout to retrofit and repair timber beams by means of carbon composite material. It is based on the combination of a carbon laminate strip attached on the tension side, and a carbon fabric discontinuously wrapping the timber element. This layout has been experimentally validated by means of a study involving large-...
Article
A modification of the original b-value (Gutenberg-Richter parameter) is proposed to evaluate local damage of reinforced concrete structures subjected to dynamical loads via the acoustic emission (AE) method. The modification, shortly called energy b-value, is based on the use of the true energy of the AE signals instead of its peak amplitude, tradi...
Article
This paper describes a comparative experimental and analytical study of the maximum bending load in timber beams of Pinus sylvestris L. having natural defects (knots, grain deviations, fissures and wanes) that are reinforced with carbon fiber composite (CFRP). Beams extracted during rehabilitation of the roof frame of the School of Law, University...
Article
Full-text available
This paper proposes a pulse-echo Ultrasonic Testing (UT) methodology to quantify the damage of hysteretic dampers subjected to cyclic loadings. Energy dissipation is known as an innovative strategy for the protection of buildings against earthquakes. It consists of installing special devices called dampers in the construction, which are entrusted t...
Article
Full-text available
This paper offers a detailed, quantitative and exhaustive experimental comparison in terms of mechanical properties of three different layouts of carbon composite materials (CFRP) used to strengthen existing old timber beams highly affected by diverse natural defects and biological attacks, testing the use of pultruded laminate attached on the tens...
Article
This paper presents a strategy to reduce the number of data required for the in-situ health evaluation of hysteretic energy dampers used for seismic protection of building structures. Such an optimization is essential in order to implement in practice the numerous indices now available for damage assessment of structures in real time, in the contex...
Article
This paper presents new contributions to evaluate the damage suffered on a particular type of hysteretic damper called web plastifying damper (WPD) for the passive control of structures subjected to earthquakes. WPDs consist of several I-section steel segments arranged to form a brace-type structural element. Energy input by the earthquake is dissi...
Article
Full-text available
Relative wavelet energy entropy (RWEE) is proposed to detect and quantify damage to hysteretic dampers used for the passive seismic control of building structures. Hysteretic dampers have the role of dissipating most of the energy input of an earthquake. Minor or moderate earthquakes do not exhaust the energy dissipation capacity of the dampers, ye...
Conference Paper
Full-text available
As it is well known, AE signal amplitude is the key parameter for the calculation of the b-value (GutenbergRichter index), used as an efficient index to evaluate damage in materials and structures. However, several physical aspects clearly influence on the signal amplitude, i.e. wave attenuation, propagation mode type and geometry of the specimen....
Article
Full-text available
This paper experimentally investigates the steel-to-concrete bond phenomenon in two kinds of deformed bars: black steel and hot-dip galvanized steel. The differences in the steel-to-concrete bond behavior are identified in terms of the load-slip curves and the acoustic emission (AE) patterns measured during pull-out tests. Test results show that th...
Conference Paper
Full-text available
RESUMEN Este trabajo presenta una técnica de inspección de disipadores de energía WPD usados en edificaciones sismorresistentes. El objeto de estos dispositivos es liberar la energía del sismo para mantener protegida la estructura principal del edificio, actuando como " fusibles sísmicos ". En particular, se propone un índice fiable para la evaluac...
Article
This paper proposes a very promising acquisition-analysis procedure to evaluate real-time damage in carbon fiber-reinforced polymer (CFRP) composite plates by means of the acoustic emission (AE) method. It shows how, by using appropriate acquisition frequency filters and very narrow time windows, it is possible to avoid reflection at boundaries and...
Article
In order to overcome the limitations of the application of traditional acoustic emission (AE) source location algorithm (such as time of arrival (TOA)) to anisotropic medium, the AE tomography is introduced into the damage location of concrete structure. In this algorithm, the AE events are taken as the point sources. Combining the source location...
Article
Full-text available
Este trabajo presenta los resultados y análisis preliminares de la Emisión Acústica (EA) registrada durante un ensayo de cristalización de sales en dos tipos de piedras naturales, calcarenita de Santa Pudia y caliza de Sierra Elvira, características de las construcciones de Andalucía Oriental y, en particular, de Granada. Los resultados muestran qu...

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