Quasi-Static Simulation of Crack Propagation on Elastic Material with Material Discontinuous Zone

Abstract:

A numerical method to simulate the crack propagation based on the maximum circumferential stress theory is presented in this paper. The FEM method is used to estimate the influence of the material discontinuous zone on the propagation path of the crack placed in close to it in the matrix. When the crack grows, the FEM method uses the maximum circumferential stress theory to determine the propagation direction and the elements re-meshing program to ensure the accuracy of the crack-tip stress field. The crack propagation paths in the matrix with different material zone are simulated by the method. The simulation results show that the property of the material discontinuous zone influences the maximum deflection angle and its size influences the length of the deflected crack path.

• Periodical: Advanced Materials Research (Volume 746)
• Pages: 211-214
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.746.211
• Online since: August 2013
• Authors: Zhi Jia Sun, You Tang Li
• Keywords: Crack Propagation, Discontinuous Zone, Element Re-Meshing, Finite Element Method (FEM)

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