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Interactions of Three Parallel Square-Hole Cracks in an Infinite Plate Subjected to Internal Pressure

Changqing Miao1, Yintao Wei2, Xiangqiao Yan1
Res Lab on Composite Materials, Harbin Inst Technol, Harbin, 150001, P.R.China.
Dept Automot Engn, Tsinghua University, Beijing, 100084, P. R China.

Computer Modeling in Engineering & Sciences 2013, 95(6), 519-534. https://doi.org/10.3970/cmes.2013.095.519

Abstract

By using a hybrid displacement discontinuity method, the interactions of three parallel square-hole cracks in an infinite plate subjected to internal pressure are investigated in this paper. Numerical examples are included to illustrate that the numerical approach is very simple and effective for calculating the stress intensity factors (SIFs) of complex plane crack problems. Many numerical results of the SIFs are given and discussed. It is found that a square hole has a shielding effect on crack(s) emanating from the hole. The finding perhaps has an important meaning in engineering.

Keywords

Parallel Cracks, Square hole, Stress intensity factor, Crack-tip element, Displacement discontinuity method.

Cite This Article

Miao, C., Wei, Y., Yan, X. (2013). Interactions of Three Parallel Square-Hole Cracks in an Infinite Plate Subjected to Internal Pressure. CMES-Computer Modeling in Engineering & Sciences, 95(6), 519–534.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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