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Inelastic material behavior and fracture mechanics: a variational approach

A variational principle is presented, which relates the macroscopic fracture response of a mechanical component to its microscopic, inelastic material behavior. The principle allows a comparison between the crack driving force, expressed by the J-integral, and an integral expression of the fracture...

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Detalles Bibliográficos
Autor principal: Bruno, L
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:https://dx.doi.org/10.1007/s004190050229
http://cds.cern.ch/record/410877
Descripción
Sumario:A variational principle is presented, which relates the macroscopic fracture response of a mechanical component to its microscopic, inelastic material behavior. The principle allows a comparison between the crack driving force, expressed by the J-integral, and an integral expression of the fracture resistance. On this basis, the critical values of J are calculated for a Griffith crack under mixed- mode loading. The preliminary check with data available in literature shows a fairly good agreement. (8 refs).