Journal of Production Engineering

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Vol. 6 No. 5, 6 (1989): Former "Proceedings of the Institute of Production Engineering"
Original Research Article

Crack tip parameters for large scale yielding

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  • Ivan Glavardanov
Ivan Glavardanov
University of Novi Sad, Faculty of Technical Sciences, Departman for Production Engineering, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia
DOI: https://doi.org/10.24867/JPE-1989-06-205

Published 1989-12-01

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Keywords

  • crack,
  • plasticity theory,
  • fracture mechanics

How to Cite

Glavardanov, I. (1989). Crack tip parameters for large scale yielding. Journal of Production Engineering, 6(5, 6), 205–216. https://doi.org/10.24867/JPE-1989-06-205

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Abstract

This paper introduces a simple correction for crack tip fields using a quasi-deformation plasticity theory that takes into account nonproportional loading. The analysis is employed to extend fracture mechanics concepts beyond the normal limits of J-integral theory. A straightforward correction for crack tip stresses is derived from the quasi-deformation assumption. This correction suggests that the degree of crack tip triaxiality is related to the relationship between the el-integral and the crack tip opening displacement (CTOD). Predictions of crack tip stress fields agree well with published finite element results.

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FULL TEXT ARTICLE (PDF)