Authors: Y Jiang T E Tay L Chen X S Sun
Publish Date: 2012/11/20
Volume: 179, Issue: 1-2, Pages: 179-199
Abstract
In this work an edgebased smoothed extended finite element method ESXFEM is extended to fracture analysis in composite materials This method in which the edgebased smoothing technique is married with enrichment in XFEM shows advantages of both the extended finite element method XFEM and the edgebased smoothed finite element method ESFEM The crack tip enrichment functions are specially derived to represent the characteristic of the displacement field around the crack tip in composite materials Due to the strain smoothing the necessity of integrating the singular derivatives of the crack tip enrichment functions is eliminated by transforming area integration into path integration which is an obvious advantage compared with XFEM Two examples are presented to testify the accuracy and convergence rate of the ESXFEM
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