Abstract
The present work proposes a method for elastic-plastic fracture mechanics analysis of the circumferential through-wall crack in between elbows and attached straight pipes, subject to in-plane bending. Based on small strain finite element limit analyses, closed-form limit load solutions are given first. Then applicability of the reference stress based method to approximately estimate J is proposed. One interesting finding is that a popular approach to assume that the crack locates in the straight pipe could lead to significantly different assessment results.
Original language | English |
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Pages (from-to) | 521-524 |
Number of pages | 4 |
Journal | Key Engineering Materials |
Volume | 345-346 I |
DOIs | |
Publication status | Published - 2007 |
Keywords
- Circumferential through-wall crack
- Elbow
- Finite element analysis
- J-integral
- Reference stress method
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering