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Cyclic crack growth in elastic plastic solids: a description in terms of dislocation theory

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Abstract

Whenever the plastic deformation is in the order of some Burgers vectors, it appears to be reasonable to describe crack tip plasticity by means of “mathematical” dislocations. A discrete dislocation model is presented for the simulation of mode I fatigue crack propagation. In order to take into account the crack face contact behind the crack tip a procedure was developed which enables the computation of the dislocation motion even when crack closure occurs.

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Authors and Affiliations

  1. Erich-Schmid-Institut für Festkörperphysik der Österreichischen Akademie der Wissenschaften, A-8700 Leoben, Austria, AT

    F. O. Riemelmoser, R. Pippan & O. Kolednik

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  1. F. O. Riemelmoser
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  2. R. Pippan
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  3. O. Kolednik
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Riemelmoser, F., Pippan, R. & Kolednik, O. Cyclic crack growth in elastic plastic solids: a description in terms of dislocation theory. Computational Mechanics 20, 139–144 (1997). https://doi.org/10.1007/s004660050230

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  • DOI: https://doi.org/10.1007/s004660050230

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