在奇异项上叠加有限元法计算动应力强度因子  

Superposition of Normal Finite Element Method On Singular Terms in the Calculation of Dynamic Stress Intensity Factors

作　　者：张宁生[1] 赵学仁[1] 

机构地区：[1]北京理工大学应用力学系

出　　处：《北京理工大学学报》1990年第4期34-39,共6页Transactions of Beijing Institute of Technology

摘　　要：用在裂纹动态奇异解析解上叠加动态有限元法,来计算动态应力强度因子。它推广了钱伟长等人的工作,所得结果可用于Ⅰ,Ⅱ型及Ⅰ,Ⅱ混合型裂纹体的动态应力强度因子的计算。Is presented an approach based on the superposition of normal finite element method on dynamic singular terms , in the whole field of the crack to calculate the dynamic stress intensity factors . This approach endeavors at an extension to work by Prof .Chien Weichang & others and can be used to calculate the dynamic & static stress intensity factors for mode 1 and mode 2, as well as for the mixed mode .

关 键 词：裂纹 应力强度因子 有限元 动态 

分 类 号：O346.1[理学—固体力学]