Plastic stress intensity factor behavior at small and large scale yielding

Alexander Zakharov; Valery Shlyannikov; Anastasia Tartygasheva

doi:10.3221/IGF-ESIS.53.19

Plastic stress intensity factor behavior at small and large scale yielding

Authors

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

DOI:

https://doi.org/10.3221/IGF-ESIS.53.19

Keywords:

Biaxial loading, J-integral, Plastic stress intensity factor, Mixed mode loading

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 I_n 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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Published

19-07-2020

Issue

Vol. 14 No. 53 (2020): July 2020

Section

Fracture

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Plastic stress intensity factor behavior at small and large scale yielding. (2020). Frattura Ed Integrità Strutturale, 14(53), 223-235. https://doi.org/10.3221/IGF-ESIS.53.19