Yield criterion for porous media with spherical voids |
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| Authors: | Malorie Trillat Joseph Pastor Pascal Francescato |
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| Affiliation: | Laboratoire Optimisation de la Conception et Ingénierie de l’Environnement (LOCIE), Ecole Supérieure d’Ingénieurs de Chambéry (ESIGEC), Université de Savoie, 73 376 Le Bourget du Lac, France |
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| Abstract: | The yield criterion of a porous material satisfying Gurson criterion conditions is studied here. We use the twofold limit analysis approach applied to a representative volume element of the porous media and recent optimization codes. Both upper and lower bounds are very close, and they give quasi-exact solutions. As a result, the Gurson approach is slightly improved and, for the first time, validated by a rigorous, full 3D static approach. |
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| Keywords: | Limit analysis Conic optimization Finite elements Porous media Yield criterion |
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