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- Title
Correction of plastic zone estimates from linear elastic stress field: a qualitative analysis.
- Authors
Sousa, R. A.; Figueiredo, F. P.
- Abstract
This paper shows the usual inconsistency made in the linear elastic fracture mechanic, which is to estimate plastic zones ( pz) from a linear elastic (LE) analysis with correction of the pz size based on assumptions of equilibrium. The corrected LE pz is compared with the pz obtained from elastic-plastic analyses. For this purpose, the finite element method is used. Moreover, the load histories in points along the domains of the corrected LE pz and elastic-plastic pz are computed and analysed. This paper, showing that LE pz, corrected or not, has only a qualitative interpretation.
- Subjects
LINEAR elastic fracture mechanics; EQUILIBRIUM; FINITE element method; ENGINEERING models; IRWIN
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2017, Vol 40, Issue 10, p1652
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.12596