Approche globale,minima relatifs et Critère d'Amorçage en Mécanique de la RuptureGlobal approach,relative minima and yield criterion in Fracture Mechanics |
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Authors: | Jérôme Laverne Jean-Jacques Marigo |
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Institution: | 1. LPMTM (UPR-CNRS 9001), Université Paris-Nord, 93430 Villetaneuse, France;2. Département AMA, EDF R&D, 1, avenue du Général de Gaulle, 92141 Clamart cedex, France |
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Abstract: | We show that it is possible to predict the onset of cracking by searching relative minima of the total energy of a body, the yield criterion depending on the choice of the energies. In particular in the case where the bulk energy is elastic and the surface energy depends on the jump of the displacement, we prove that the yield criterion is formulated in terms of the stress tensor and of intrinsic curve type. To cite this article: J. Laverne, J.-J. Marigo, C. R. Mecanique 332 (2004). |
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Keywords: | Rupture Élasticité Énergie de surface Mécanique de la Rupture Calcul des variations Rupture Elasticity Surface energy Fracture Mechanics Calculus of Variations |
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