Fracture analysis of a functionally graded interfacial zone between two dissimilar homogeneous materials

被引:0
作者
Zhanqi Cheng
Zheng Zhong
机构
[1] Tongji University,School of Aerospace Engineering and Applied mechanics
[2] Zhengzhou University,College of Civil Engineering
来源
Science in China Series G: Physics, Mechanics and Astronomy | 2006年 / 49卷
关键词
functionally graded material; interfacial zone; fracture; stress intensity factor;
D O I
暂无
中图分类号
学科分类号
摘要
In this paper the plane elasticity problem for a functionally graded interfacial zone containing a crack between two dissimilar homogeneous materials has been considered. It is assumed that in the interfacial zone the reciprocal of the shear modulus is a linear function of the coordinate, while Possion’s ratio keeps constant. By utilizing the Fourier transformation technique and the transfer matrix method, the mixed boundary problem is reduced to a system of singular integral equations that are solved numerically. The influences of the geometric parameters and the graded parameter on the stress intensity factors are investigated. The numerical results show that the graded parameters, the thickness of interfacial zone, the crack size and location have significant effects on the stress intensity factors.
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页码:540 / 552
页数:12
相关论文
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