Plastic stress intensity factor behavior at small and large scale yielding

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Published Jul 19, 2020
DOI https://doi.org/10.3221/IGF-ESIS.53.19

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Alexander Zakharov
Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences
https://orcid.org/0000-0003-3568-1427 Valery Shlyannikov
Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences
https://orcid.org/0000-0003-2468-9300 Anastasia Tartygasheva
Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences

Abstract

In this paper the plastic stress intensity factor (SIF) is used to study the coupling effects of loading biaxiality, material properties and cracked body configuration in both the small- and large-scale yielding ranges. A finite element (FE) analysis is performed for a cracked Mode I plane strain plate subjected to biaxial tension/compression loading. The governing parameter of the elastic–plastic crack-tip stress field In factor at the crack tip, J-integral, and the plastic SIF, are calculated as a functions of loading biaxiality and applied stress levels. Special emphasis is put on the behavior of J-integral and the plastic SIF for specified test specimen geometries under mixed mode loading. Finally, the applicability of the plastic SIF approach to large-scale yielding analysis is also discussed.

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    Issue
    Vol. 14 No. 53 (2020): July 2020
    Section
    Fracture

    How to Cite

    Zakharov, A., Shlyannikov, V. and Tartygasheva, A. (2020) “Plastic stress intensity factor behavior at small and large scale yielding”, Frattura ed Integrità Strutturale, 14(53), pp. 223–235. doi: 10.3221/IGF-ESIS.53.19.
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