A Vanishing Viscosity Approach to Fracture Growth in a Cohesive Zone Model with Prescribed Crack Path
نویسنده
چکیده
Abstract. The existence of crack evolutions based on critical points of the energy functional is proved, in the case of a cohesive zone model with prescribed crack path. It turns out that evolutions of this type satisfy a maximum stress criterion for the crack initiation. With an explicit example, it is shown that evolutions based on the absolute minimization of the energy functional do not enjoy this property.
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