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Determination of the driving force acting on a kinked crack

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Summary

A variational principle is formulated for a body containing a crack in equilibrium. An expression for the driving force acting on the crack admitting nontangential virtual crack extensions is derived. As a consequence of a variational principle, crack equilibrium criterion under mixed-mode loading conditions is obtained. For general 3-D problems, the magnitude as well as the direction of the driving force are precisely determined. Fracture locus for three combined modes is calculated.

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Authors and Affiliations

  1. Lehrstuhl für Allgemeine Mechanik, Ruhr-Universität Bochum Universitätsstr. 150, D-44780 Bochum, Germany, , , , , , DE

    K. C. Le, H. Schütte & H. Stumpf

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  1. K. C. Le
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  2. H. Schütte
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  3. H. Stumpf
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Received 18 June 1998; accepted for publication 7 January 1999

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Le, K., Schütte, H. & Stumpf, H. Determination of the driving force acting on a kinked crack. Archive of Applied Mechanics 69, 337–344 (1999). https://doi.org/10.1007/s004190050224

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  • DOI: https://doi.org/10.1007/s004190050224

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