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Inelastic material behavior and fracture mechanics: a variational approach

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Summary

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.

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Authors and Affiliations

  1. CERN Div. SL/BT (TA), Mailbox Z15010, CH-1211 Genève 23, Switzerland, , , , , , CH

    L. Bruno

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  1. L. Bruno
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Received 18 July 1998; accepted for publication 9 February 1999

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Bruno, L. Inelastic material behavior and fracture mechanics: a variational approach. Archive of Applied Mechanics 69, 393–405 (1999). https://doi.org/10.1007/s004190050229

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  • DOI: https://doi.org/10.1007/s004190050229

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