Use of acoustic emission to discriminate damage modes in carbon fibre reinforced epoxy laminate during tensile and buckling loadingReport as inadecuate




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1 MAT - Centre des Matériaux

Abstract : The purpose of this work is to use acoustic emission signal parameters to identify andcharacterize the various damage mechanisms in composite and composite-antenna-structuresduring tensile and buckling loading. The wave form, FFT diagram, peak power, frequencycentroid, peak frequency, absolute energy, average frequency, duration and amplitude wereused for discriminate the acoustic emission signals, enabling a correlation with the damagemechanisms modes: fibre breakage, interfacial debonding fibre-matrix, micro and macromatrix cracking, delamination onset microdelamination and propagation of delaminationmacrodelamination. These results open perspectives for real-time damage monitoring incomplex composite material.

Keywords : buckling loading damage mechanisms acoustic emission





Author: Pongsak Nimdum - Jacques Renard -

Source: https://hal.archives-ouvertes.fr/



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