Evaluation of the SIF for the Multiple Crack Problems

Abstract:

In elastic fracture mechanics the evaluation of the stress intensity factor (SIF) for multiple cracks problems is an important issue. In the paper the scaled boundary finite element method (SBFEM) is used to solve the SIF of mode I of multiple crack problems. The solving domain is partitioned into several sub-domains according to the number of cracks. Every sub-domain has its own scaling center. The characteristics of the SBFEM are preserved in every sub-domain. Numerical examples show that the SBFEM is effective with high accuracy in evaluating the multiple cracks fracture problems. It can be applied to treat the anisotropic materials conveniently. The stress intensity factors of unequal double-edged cracks in orthotropic material are provided.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 66-70
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.66
• Online since: September 2014
• Authors: Jun Yu Liu, Ping Zhang, Meng Han Liao, Bao Kuan Ning
• Keywords: Fracture Mechanics, Multiple Crack Problem, Orthotropic Materials, Scaled Boundary Finite Element Method, Stress Intensity Factor

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