Hits:

Indexed by:期刊论文

Date of Publication:2013-06-01

Journal:CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES

Included Journals:SCIE、EI、Scopus

Volume:92

Issue:6

Page Number:595-614

ISSN No.:1526-1492

Key Words:Radial integration method; Cartesian transformation method; cell-integration method; dynamic stress intensity factors; functionally graded materials

Abstract:A boundary-domain integral equation method is applied to the transient thermoelastic crack analysis in functionally graded materials. Fundamental solutions for homogeneous, isotropic and linear elastic materials are used to derive the boundary-domain integral equations. The radial integration method, the Cartesian transformation method and the cell-integration method are applied for the evaluation of the arising domain-integrals. Numerical results for dynamic stress intensity factors obtained by the three approaches are presented, compared and discussed to show the accuracy and the efficiency of the domain-integral evaluation techniques.