【摘要】 采用基于边界元方法的广义Kelvin解对功能梯度材料中的裂纹问题进行了研究,主要在对裂纹的评价中采用了多域法和八节点面力奇异边界单元,并采用层离散化方法用来近似功能梯度材料,计算出了不同条件下功能梯度材料中币形裂纹的应力强度因子。更多还原

【Abstract】 A so-called generalized Kelvin solution based on boundary element method is used to check out the crack problem of functionally graded material in this present study,the multi-region method and the eight-node traction singular boundary elements are used for the crack evaluation. The layer discretization technique is utilized to approximate the functionally graded material and calculate the stress intensity factor of the penny-shaped crack of functionally graded material under different conditions.更多还原