An extension of Gurson model incorporating interface stresses effects
DORMIEUX ; KONDO
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
DORMIEUX ; KONDO
Résumé / Abstract
The classical Gurson model for ductile porous media is extended to incorporate the surface/interface stresses effect at the nano-scale. For capillary forces, the yield surface is shown to be obtained by a mere translation of Gurson one. For interface stresses obeying a von Mises criterion, the parametric equations of the yield surface are derived. The magnitude of the interface effect is proved to be controlled by a non dimensional parameter depending on the voids characteristic size.
Source
International Journal of Engineering Science, num. 6, pp 575-581 p.
Editeur
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