中文摘要：

A comprehensive treatment of fracture of functionally graded materials(FGMs)is provided.It is assumed that the material properties depend only on the coordinate perpendicular to the crack surfacesand vary continuously along the crack faces.By using a laminated composite plate model to simulate the ma-terial non-homogeneity,an algorithm for solving the system based on Laplace transform and Fourier transformtechniques is presented.Unlike earlier studies that considered certain assumed property distributions and asingle crack problem,the current investigation studies multiple crack problem in the FGMs with arbitrarilyvarying material properties.Transient thermal stresses are presented.

英文摘要：

A comprehensive treatment of fracture of functionally gradedmaterials (FGMs) is provided. It is assumed that the materialproperties depend only on the coordinate perpendicular to the cracksurface And vary continuously along the crack faces. By using alaminated composite plate model to simulate the ma- Terialnon-homogeneity, an algorithm for solving the system based on Laplacetransform and Fourier transform Techniques is presented. Unlikeearlier studies that considered certain assumed propertydistributions and a Single crack problem, the current investigationstudies multiple crack problem in the FGMs with arbitrarily Varyingmaterial properties. Transient thermal stresses are presented.