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Plasticity criterion for porous medium with cylindrical voidUn critère de plasticité pour un matériau poreux à vide cylindrique |
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| Authors: | Yves-Patrick Pellegrini |
| Institution: | Département de physique théorique et appliquée, CEA, BP 12, 91680 Bruyères-le-Châtel, France |
| Abstract: | A simple Gurson-based yield criterion for porous materials with cylindrical voids in plane stress is proposed. With no adjustable parameters, it compares quite satisfactorily with recent numerical data by Francescato et al. for different porosities. It is non-analytic with respect to the porosity, and displays an angulous point. To cite this article: Y.-P. Pellegrini, C. R. Mecanique 330 (2002) 763–768. |
| Keywords: | porous media ductile behavior perfect plasticity Gurson model cylindrical voids homogenization milieux pareux comportement ductile plasticité parfaite modèle de Gurson cavités cylindriques homogénéisation |
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