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Calcul du taux de restitution de l’énergie au voisinage d’une singularité. (Computation of the energy release rate in the vicinity of a singularity). (French) Zbl 0677.73069
Summary: The change in potential energy, due to the initiation of a micro-crack or a micro-void at a singular point of a structure, is expressed in terms of the exponent and the stress intensity factor of this singularity, using the matched asymptotic expansions method. Some properties of the energy release rate have been derived.

MSC:
74R05 Brittle damage
74G70 Stress concentrations, singularities in solid mechanics
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