Numerical Simulation on Interface Crack Propagation for Non-Uniform Welded Joint

Xiang Hong Zhang; Can Duo Shen; Chang Qing Sun

doi:10.4028/www.scientific.net/AMR.602-604.2065

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Numerical Simulation on Interface Crack Propagation for Non-Uniform Welded Joint

Abstract:

Maximum normal stress criterion can be used to determine the cracking angle in the uniform and non-uniform zone. According to this theory, the propagating process of the crack in non-uniform composite material is simulated based on the finite element method. The results show that the crack advances wave-like and basically along the direction perpendicular to the maximum normal stress, which is of great guiding significance for the fracture resistance of such kind of structure.