Failure locus of polypropylene nonwoven fabrics under in-plane biaxial deformation - 10/05/12
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Abstract |
The failure locus, the characteristics of the stress–strain curve and the damage localization patterns were analyzed in a polypropylene nonwoven fabric under in-plane biaxial deformation. The analysis was carried out by means of a homogenization model developed within the context of the finite element method. It provides the constitutive response for a mesodomain of the fabric corresponding to the area associated to a finite element and takes into account the main deformation and damage mechanisms experimentally observed. It was found that the failure locus in the stress space was accurately predicted by the Von Mises criterion and failure took place by the localization of damage into a crack perpendicular to the main loading axis.
Le texte complet de cet article est disponible en PDF.Keywords : Nonwoven fabric, In-plane biaxial deformation, Failure locus, Finite element method
Plan
Vol 340 - N° 4-5
P. 307-319 - avril 2012 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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