Experimental methodology for high strain-rates tensile behaviour analysis of polymer matrix composites

Fitoussi, Joseph; Meraghni, Fodil; Jendli, Zouhaier; Hug, G.; Baptiste, D.

doi:10.1016/j.compscitech.2005.05.001

Cited by 82 publications

(83 citation statements)

References 15 publications

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“…Servo-hydraulic high speed machines have been used to generate data for metals [14,15], plastics [16,17], Kevlar fabrics and yarns [18][19][20][21] and composite materials [22,23] in this strain rate range. The Society of Automotive Engineers (SAE) coordinated a cooperative research project to develop an industrial standard and practice guideline for dynamic tensile testing of plastics at medium strain rates [24].…”

Section: Introductionmentioning

confidence: 99%

Modal Analysis of a Servo-Hydraulic High Speed Machine and its Application to Dynamic Tensile Testing at an Intermediate Strain Rate

et al. 2010

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This paper describes the experimental procedure to identify the predominant frequencies of the high speed testing machine by conducting modal analysis. The effects due to the predominant frequencies of the system and loading rate on the magnitude of system ringing and the flow stress were analyzed by using a single degree-offreedom (SDOF) spring-mass-damper model. The system was then used to study the dynamic tensile behavior of two engineering materials, i.e., polyethylene (PE) fabric-cement composite and Alkaline Resistant (AR) glass fabrics at an intermediate strain rate. The stress oscillations in the response of these materials due to system ringing were addressed. The failure behavior of each material was studied by examining high speed digital camera images of specimens during the test. The validity of the dynamic tensile tests was investigated by examining the condition of dynamic stress equilibrium-a criterion used in split Hopkinson pressure bar (SHPB) tests. The results show that the quantitative criterion for a valid SHPB test is also applicable to dynamic tensile tests of these materials at the intermediate strain rate.

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Section: Introductionmentioning

confidence: 99%

Modal Analysis of a Servo-Hydraulic High Speed Machine and its Application to Dynamic Tensile Testing at an Intermediate Strain Rate

et al. 2010

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“…Otherwise, one can note (Figure 4-a) that the interfacial damage rate is less important when the loading speed increases. One can conclude therefore that the behaviour of the material is mainly governed by the damage viscosity [15], see also [11,14] for a complete description of the strain rate effects on the interface failure evolution. …”

Section: Experimental Approach and Tests Datamentioning

confidence: 99%

“…Interrupted rapid tensile tests, originally proposed by Lataillade [13], have been numerically optimized [11] and then performed according to an incremental operating strategy. These tests are analysed at the two material scales: At the macroscopic scale, enabling hence the characterisation of the stages of the dynamic behaviour and the progressive stiffness reduction of the SMC-R26.…”

Section: Experimental Approach and Tests Datamentioning

confidence: 99%

“…A better understanding of the physical mechanisms of material progressive degradation may contribute to a better formulation of local criteria and then, a better modelling of their effects on the overall dynamic behaviour. With this in mind, in a first time, a multi-scales (macroscopic and microscopic) experimental analysis has been performed on the studied material when subjected to high-speed tensile tests [3,11]. The main purpose of the developed methodology was to set up a micromechanical model.…”

Section: Introductionmentioning

confidence: 99%

“…In the first part of this paper, the experimental approach and results are briefly presented, [3,11]. The second part of this paper is devoted to the formulation of a multi-scales aimed at predicting constitutive law of a discontinuous randomly oriented fibre reinforced polyester, noted hereafter SMC-R26.…”

Section: Introductionmentioning

confidence: 99%

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Multi-scales modelling of dynamic behaviour for discontinuous fibre SMC composites

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Study of composite polymer degradation for high pressure hydrogen vessel by machine learning approach

Kadri,

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et al. 2024

Energy Storage

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The aim of this article is to study the degradation of a composite material under static pressure. The high pressure condition is similar to the one encountered inside hydrogen tanks. Damage modeling was used to evaluate the behavior of hydrogen tanks to high pressure. A practical approach, coupling a finite element method (FEM) simulation and machine learning (ML) algorithm, is suggested. The representative volume element (RVE) was used in association with a choice of a behavior law and a damage law as an input data. Algorithms for ML classification such as K‐nearest neighbors (k‐NN) and a special k‐NN with a dynamic time warping metric were used. The hierarchical clustering through dendrograms visualizations allowed to exhibit the impact of composite parameters in relation to fiber, matrix properties and fiber volume fraction on the strain degradation under external static pressure. Continuing this, the optimum RVE which shows a low degradation value will be exhibited.

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Experimental methodology for high strain-rates tensile behaviour analysis of polymer matrix composites

Cited by 82 publications

References 15 publications

Modal Analysis of a Servo-Hydraulic High Speed Machine and its Application to Dynamic Tensile Testing at an Intermediate Strain Rate

Modal Analysis of a Servo-Hydraulic High Speed Machine and its Application to Dynamic Tensile Testing at an Intermediate Strain Rate

Multi-scales modelling of dynamic behaviour for discontinuous fibre SMC composites

Study of composite polymer degradation for high pressure hydrogen vessel by machine learning approach

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