COMPUTING LOWER AND UPPER BOUNDS FOR J-INTEGRAL IN FUNCTIONALLY GRADED MATERIAL

摘要：

We use goal-oriented error estimation of finite element method for solving the lower and upper bounds for the J-integral in functionally graded material (FGM).The error of the J-integral is composed of a quadratic component and a linear component.The quadratic component is bounded by the energy norm of the error scaled by an explicit continuous function.The linear component is bounded by an appropriate combination of the energy norms of the error in the displacement and the adjoint solution.An example is given at the end of the paper to verify the present method.

关键词： FGM J-integral Bounds Goal-oriented finite element method

作者: Z.C.Xuan Y.Fantahun Z.F.Zhou

作者单位: Department of Computer Science,Tianjin University of Technology and Education,Tianjin 300222,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1133-1136

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）