期刊
MECHANICS RESEARCH COMMUNICATIONS
卷 67, 期 -, 页码 39-46出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechrescom.2015.05.006
关键词
Dugdale crack; Doubly periodic problem; Singular integral equation; Plastic zone size; Crack tip opening displacement
类别
资金
- Fund of the National Natural Science Foundation of China [11472201, 11362018]
- Fundamental Research Funds for the Central Universities [JB142001-2]
- Open Research Fund of Key Laboratory of Mechanics on Disaster and Environment in Western China [Klmwde201406]
Multiple cracks interaction plays an important role in fracture behavior of materials. A number of studies have been devoted to analytical and numerical analyses of the doubly periodic arrays of cracks. A very natural and highly accurate solution procedure is proposed to describe the interaction effect among the doubly periodic rectangular-shaped arrays of cracks. The proposed solution is implemented in the framework of continuously distributed dislocation model and singular integral equation approach. The accuracy of this solution is proved through a comparison of results from the present simulation and known closed form solutions. Further, the interaction effects among the periodic cracks on the plastic zone size and crack tip opening displacement are studied. It is found that the interaction distance among the vertical and horizontal periodic cracks is quite different. (C) 2015 Elsevier Ltd. All rights reserved.
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