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International Journal for Multiscale Computational Engineering

Publicado 6 números por año

ISSN Imprimir: 1543-1649

ISSN En Línea: 1940-4352

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DAMAGE LOCALIZATION AND FAILURE LOCUS UNDER BIAXIAL LOADING IN GLASS-FIBER NONWOVEN FELTS

Volumen 10, Edición 5, 2012, pp. 425-440
DOI: 10.1615/IntJMultCompEng.2012002922
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SINOPSIS

The pattern of damage localization and fracture under uniaxial and biaxial tension was studied in glass-fiber nonwoven felts. The analyses were carried out within the framework of the finite-element simulation of plain and notched specimens in which the microstructure of the felt, made up of fiber bundles connected at the cross point through an organic binder, was explicitly represented. Following previous experimental observations, fracture by interbundle decohesion and energy dissipation by frictional sliding between the bundles were included in the model. It was found that the failure path in these materials was controlled by the maximum applied normal stress, regardless of the loading path, and that the failure locus under biaxial tension was well represented by the von Mises failure criteria. The notch sensitivity of the nonwoven felts was limited and the presence of a notch did not modify the failure path.

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CITADO POR
  1. Wilbrink D.V., Beex L.A.A., Peerlings R.H.J., A discrete network model for bond failure and frictional sliding in fibrous materials, International Journal of Solids and Structures, 50, 9, 2013. Crossref

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