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Journal of Applied MathematicsVolume 2013 2013, Article ID 934124, 6 pages

Research ArticleSchool of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China

Received 27 May 2013; Accepted 15 July 2013

Academic Editor: Ray Su

Copyright © 2013 Wenbin Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The mechanical behavior near the doubly periodic crack tips for orthotropic composite materials plate subjected to antiplane shear loading is studied. This is done by complex function theory and conformal mapping of the Jacobi elliptic function with the help of boundary conditions. The analytical solution of the crack-tips stress intensity factor and the expression of stress fields are obtained. Numerical examples are given to analyze the impact of the different transverse spacing, longitudinal spacing, and the ratio of cracks periods on stress intensity factors. The results show that the crack-tip field increases with reducing either the transverse spacing or the longitudinal spacing. At the same time, the crack-tip field increases with the decrease of the ratio of cracks periods. This shows that the distribution form makes an important effect on the crack-tip field, but the crack density parameter is not the only cause.





Autor: Wenbin Zhao, Chan Li, Xuexia Zhang, Hailing Xie, and Lujuan Yu

Fuente: https://www.hindawi.com/



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