A comparison of stress intensity factors through crack closure integral and other approaches using eXtended element-free Galerkin method

N. Muthu, S. K. Maiti, B. G. Falzon, I. Guiamatsia

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In this paper, a new approach for extracting stress intensity factors (SIFs) by the extended element-free Galerkin method, through a crack closure integral (CCI) scheme, is proposed. The CCI calculation is used in conjunction with a local smoothing technique to improve the accuracy of the computed SIFs in a number of case studies of linear elastic fracture mechanics. The cases involve problems of mixed-mode, curved crack and thermo-mechanical loading. The SIFs by CCI, displacement and stress methods are compared with those based on the M-integral technique reported in the literature. The proposed CCI method involves very simple relations, and still gives good accuracy. The convergence of the results is also examined.
Original languageEnglish
Pages (from-to)587-605
Number of pages19
JournalComputational Mechanics
Volume52
Issue number3
Early online date06 Feb 2013
DOIs
Publication statusPublished - Sep 2013

Fingerprint

Dive into the research topics of 'A comparison of stress intensity factors through crack closure integral and other approaches using eXtended element-free Galerkin method'. Together they form a unique fingerprint.

Cite this