A FRACTURE MECHANICS MODEL FOR AN ARBITRARILY ORIENTED CRACK IN FUNCTIONALLY GRADED MATERIALS

摘要：

The general solution to an arbitrarily oriented crack in FGMs is investigated in this paper.Applying the superposition principle and Fourier integral transform method,the expressions of the displacement fields and stress fields are obtained.Then the general crack problem is turned into a group of singular integral equations by introducing auxiliary functions defined in the cracked layer.The final singular integral equations are solved by using the theory of residues and numerical method.Finally,the variation of the mixed-mode stress intensity factors (SIFs) with the crack angle is discussed.

关键词： functionally graded materials stress intensity factors crack

作者: Z.H.Wang L.C.Guo

作者单位: Department of Astronautic Science and Mechanics. Harbin Institute of Technology,Harbin 150001,P.R.China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 981-984

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）