2006
DOI: 10.2516/ogst:2006015
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Cohesive Zone Description and Quantitative Analysis of Glassy Polymer Fracture

Abstract: Résumé -Modélisation par zone cohésive et étude expérimentale de la rupture des polymères vitreux -Le craquelage est décrit à l'aide d'une zone cohésive qui prend en compte l'amorçage, l'élargissement des surfaces des craquelures jusqu'à la rupture des fibrilles qui correspond à la création d'une fissure localement. Une calibration des paramètres de la zone cohésive est présentée pour le PMMA (Polymethyl methacrylate). Nous montrons qu'il est nécessaire de décrire le craquelage à l'aide d'une zone cohésive vis… Show more

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Cited by 2 publications
(1 citation statement)
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“…In fact, many craze initiation criterion are based on critical mean stress only (see, Sternstein and Ongchin, 1969) implying that deviatoric states of stress do not lead to initiation of crazes. It is, however, clear that attainment of a critical mean stress (see, Saad et al, 2006) is necessary for the onset of crazing though it may not be sufficient (see also, Sternstein and Myers, 1973).…”
Section: Brittleness Due To Ageingmentioning
confidence: 97%
“…In fact, many craze initiation criterion are based on critical mean stress only (see, Sternstein and Ongchin, 1969) implying that deviatoric states of stress do not lead to initiation of crazes. It is, however, clear that attainment of a critical mean stress (see, Saad et al, 2006) is necessary for the onset of crazing though it may not be sufficient (see also, Sternstein and Myers, 1973).…”
Section: Brittleness Due To Ageingmentioning
confidence: 97%