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Applied Mathematics and Mechanics (English Edition) ›› 2008, Vol. 29 ›› Issue (8): 1045-1051 .doi: https://doi.org/10.1007/s10483-008-0808-7

• Articles • 上一篇    下一篇

正交异性双材料界面裂纹尖端应力场

李俊林,张少琴,杨维阳   

  1. 太原科技大学 应用科学学院，太原 030024
  • 收稿日期:2008-01-09 修回日期:2008-07-02 出版日期:2008-08-18 发布日期:2008-08-18
  • 通讯作者: 李俊林

Stress field near interface crack tip of double dissimilar orthotropic composite materials

LI Jun-lin, ZHANG Shao-qin, YANG Wei-yang   

  1. School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, P. R. China
  • Received:2008-01-09 Revised:2008-07-02 Online:2008-08-18 Published:2008-08-18
  • Contact: LI Jun-lin

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摘要： 通过构造新的应力函数，利用复合材料断裂复变方法，对正交异性双材料界面裂纹进行了研究.在特征方程组的判别式都大于零的情形下，推出了I型界面裂纹尖端的应力场、位移场的理论公式，其结果没有振荡奇异及裂纹面没有相互嵌入现象.

关键词: 正交异性, 界面裂纹, 裂纹尖端, 应力场

Abstract: In this paper, double dissimilar orthotropic composite materials interfacial crack is studied by constructing new stress functions and employing the method of composite material complex. When the characteristic equations' discriminates Δ1>0 and Δ2>0, the theoretical formula of the stress field and the displacement field near the mode I interface crack tip are derived, indicating that there is no oscillation and inter-embedding between the interfaces of the crack.

Key words: orthotropic, interface crack, crack tip, stress field

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