Paper Title:
Computation of Mixed Mode Stress Intensity Factor for Parallel Edge Cracks
  Abstract

This paper presents the extensions of newly developed finite element (FE) formulation to evaluate fracture behavior of parallel edge cracks problems. The numerical formulation used Barsoum singular finite elements to compute fracture parameters in two dimensional finite element models subjected to different crack-width ratio and cracks interval ratio. Mixed mode stress intensity factors (SIFs) of parallel edge cracks are computed in extending of FE formulation for pure Mode I formulation proposed by authors. In 2D linear elastic problem under mixed mode condition, the variation of SIF value near crack tips are discussed comprehensively. The newly finite element formulations are resulted with remarkable agreement with energy release rate based method compared to analytical solution available in the literatures.

  Info
Periodical
Edited by
Zhou Mark
Pages
1326-1331
DOI
10.4028/www.scientific.net/AMM.52-54.1326
Citation
R. Daud, A. K. Ariffin, S. Abdullah, A.E. Ismail, "Computation of Mixed Mode Stress Intensity Factor for Parallel Edge Cracks", Applied Mechanics and Materials, Vols. 52-54, pp. 1326-1331, 2011
Online since
March 2011
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