Search Results - "Rachid, El Guerjouma"

3D Modelling of the Scattering of the Fundamental Anti-Symmetric Lamb Mode (A0) Propagating within a Point-Impacted Transverse-Isotropic Composite Plate by Singh, Dilbag, Bentahar, Mourad, Mechri, Charfeddine, El Guerjouma, Rachid

“…The present paper deals with an effort to model impact damage in 3D-FE simulation. In this work, we studied the scattering behavior of an incident A0 guided…”
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Acoustic emission monitoring of damage modes in reinforced concrete beams by using narrow partial power bands by Mandal, Deba Datta, Bentahar, Mourad, El Mahi, Abderrahim, Brouste, Alexandre, El Guerjouma, Rachid, Montresor, Silvio, Cartiaux, François-Baptiste, Semiao, Jorge

“…This work presents an acoustic emission (AE) based method, named a series of narrow partial power bands (SN2PB), to monitor the damage mechanisms within…”
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Comparative Study of Leak Detection in PVC Water Pipes Using Ceramic, Polymer, and Surface Acoustic Wave Sensors by Hamamed, Najah, Mechri, Charfeddine, Mhammedi, Taoufik, Yaakoubi, Nourdin, El Guerjouma, Rachid, Bouaziz, Slim, Haddar, Mohamed

“…The detection and location of pipeline leakage can be deduced from the time arrival leak signals measured by acoustic sensors placed at the pipe. Ongoing…”
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Acoustic Emission Monitoring of Progressive Damage of Reinforced Concrete T-Beams under Four-Point Bending by Mandal, Deba Datta, Bentahar, Mourad, El Mahi, Abderrahim, Brouste, Alexandre, El Guerjouma, Rachid, Montresor, Silvio, Cartiaux, François-Baptiste

“…Acoustic Emission (AE) is revealed to be highly adapted to monitor materials and structures in materials research and for site monitoring. AE-features can be…”
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Monitoring progressive damage in polymer-based composite using nonlinear dynamics and acoustic emission by Bentahar, Mourad, Guerjouma, Rachid El

“…In this work quantitative results of applying nonlinear acoustic dynamics to study progressive damage in a polymer-based composite SMC (sheet molding compound)…”
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Effect of hydric aging on the static and vibration behavior of 3D printed bio-based flax fiber reinforced poly-lactic acid composites by Kesentini, Zeineb, El Mahi, Abderrahim, Rebiere, Jean-Luc, El Guerjouma, Rachid, Beyaoui, Moez, Haddar, Mohamed

“…Moisture accumulation and life span in a hydric setting are major concerns for natural fibers used for the reinforcement of bio-based composites. This article…”
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Mechanical behavior and health monitoring by Acoustic Emission of unidirectional and cross-ply laminates integrated by piezoelectric implant by Masmoudi, Sahir, Mahi, Abderrahim El, Turki, Saïd, Guerjouma, Rachid El

“…Recent progress in sensor technologies, signal processing and electronics has made it possible to fulfill the need for the development of in-service structural…”
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Measurement of ultrasonic scattering attenuation in austenitic stainless steel welds: Realistic input data for NDT numerical modeling by Ploix, Marie-Aude, Guy, Philippe, Chassignole, Bertrand, Moysan, Joseph, Corneloup, Gilles, Guerjouma, Rachid El

“…•Scattering attenuation is tried to be evaluated with accuracy to enter it into FEM.•We examine the influence of the choice of material elastic…”
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Mechanical behaviour and health monitoring by acoustic emission of sandwich composite integrated by piezoelectric implant by Masmoudi, Sahir, El Mahi, Abderrahim, El Guerjouma, Rachid

“…•Effects of embedded sensors on the host sandwich composite have been investigated.•During flexural testes, acoustic emission signals were recorded.•Embedded…”
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Anisotropy of hygrothermal damage in fiber/polymer composites: Effective elasticity measures and estimates by Yann, Ricotti, Damien, Ducret, Rachid, El Guerjouma, Patrick, Franciosi

“…Measured elasticity moduli of a highly (68%) glass-fiber reinforced epoxy matrix for different amounts of fiber/matrix interface weakening and debonding, due…”
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Nondestructive evaluation of materials using an inserted piezoelectric sensor-correlation with hardness measurements by Perrissin-Fabert, I., Jayet, Y., El Guerjouma, R.

“…Using a one-dimensional model, we show that the analytical expression of the electric impedance of a piezoelectric ceramic is function of the acoustic…”
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Monitoring of damage mechanisms in sandwich composite materials using acoustic emission by Assarar, Mustapha, Bentahar, Mourad, El Mahi, Abderrahim, El Guerjouma, Rachid

“…This work presents a procedure for investigating local damages created in sandwich composites. The proposed analysis is based on the processing of the recorded…”
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Characterization of sandwich beams with shear damages by linear and nonlinear vibration methods by Ben Ammar, Imen, El Mahi, Abderrahim, Karra, Chafik, El Guerjouma, Rachid, Haddar, Mohamed

“…The aim of the present work is to study the vibration behavior of sandwich composites with shear damages on the foams. The effect of the densities of damage on…”
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Evidence of microstructure evolution in solid elastic media based on a power law analysis by Scalerandi, M., Idjimarene, S., Bentahar, M., El Guerjouma, R.

“…•We introduce a formalism for modeling the hysteretic elastic behavior of materials using a multi-scale statistical approach.•We classify models according to…”
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Detection and localization of microcracking in polymer concrete using coda wave interferometry (CWI) at resonance by Mechri, Charfeddine, Bentahar, Mourad, Toumi, Souad, Boubneider, Fouad, El Guerjouma, Rachid

“…Nonlinear resonance and Coda Wave Interferometry (CWI) proved their potential to detect the evolution of a structure, namely, in the case of damage…”
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Characterization of sandwich beams with debonding by linear and nonlinear vibration method by Idriss, M., El Mahi, A., El Guerjouma, R.

“…The nonlinear vibration method is used to characterize the behavior of sandwich beams with debonding. The technique focuses on the response of the material’s…”
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Hysteretic nonlinearity analysis in damaged composite plates using guided waves by Baccouche, Yousra, Bentahar, Mourad, Mechri, Charfeddine, El Guerjouma, Rachid, Hédi Ben Ghozlen, Mohamed

“…Sensitivity of nonlinear acoustic methods to the presence and the evolution of micro-damage has been proven in various studies on a wide range of materials. In…”
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Creep ruptures in heterogeneous materials by Nechad, H, Helmstetter, A, El Guerjouma, R, Sornette, D

“…We present creep experiments on fiber composite materials with different controlled heterogeneity. All samples exhibit a power-law relaxation of the strain…”
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Ultrasonic and structural characterization of anisotropic austenitic stainless steel welds: Towards a higher reliability in ultrasonic non-destructive testing by Chassignole, B., El Guerjouma, R., Ploix, M.-A., Fouquet, T.

“…The non-destructive testing of austenitic stainless steel welds of the primary coolant piping system is a significant problem for the nuclear industry…”
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Fatigue behavior and damage analysis by the acoustic emission technique of cross-ply laminates under tensile loading by Ben Ammar, Imen, El Mahi, Abderrahim, Karra, Chafik, El Guerjouma, Rachid, Haddar, Mohamed

“…Purpose The purpose of this paper is to study the mechanical behavior in fatigue tensile mode of different cross-ply laminates constituted of unidirectional…”
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