The edge crack problem for an orthotropic functionally graded strip under concentrated loads  

作　　者：果立成 吴林志 曾涛 

机构地区：[1]The Architectual Design and Research Institute, Harbin Institute of Technology, Habin 150001, China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2004年第3期257-261,共5页哈尔滨工业大学学报（英文版）

基　　金：SponsoredbytheTrans CenturyTrainingProgrammeFoundationfortheTalentsbytheMinistryofEducationandtheResearchFundfortheDoctoralProgramofHigherEd ucation .

摘　　要：The plane crack problem of an orthotropic functionally graded strip under concentrated loads is studied. The edge crack is perpendicular to the boundary and the elastic property of the material is assumed to vary depending on thickness. By using an integral transform method, the present problem can be reduced to a single integral equation which is solved numerically. The influences of parameters such as the nonhomogeneity constant and the geometry parameters on the stress intensity factors (SIFs) are studied. It is found that the nonhomogeneity constant has important influences on the SIFs.The plane crack problem of an orthotropic functionally graded strip under concentrated loads is studied. The edge crack is perpendicular to the boundary and the elastic property of the material is assumed to vary depending on thickness. By using an integral transform method, the present problem can be reduced to a single integral equation which is solved numerically. The influences of parameters such as the nonhomogeneity constant and the geometry parameters on the stress intensity factors (SIFs) are studied. It is found that the nonhomogeneity constant has important influences on the SIFs.

关 键 词：orthotropic functionally graded material edge crack stress intensity factors 

分 类 号：TB301[一般工业技术—材料科学与工程]