复合材料非对称动态扩展裂纹的模型  

A model of an asymmetrically dynamic propagation crack of composite materials

作　　者：吕念春[1] 程云虹[2] 李新刚[1] 程靳[1] 

机构地区：[1]哈尔滨工业大学航天工程与力学系 [2]东北大学土木工程系,沈阳110006

出　　处：《哈尔滨工业大学学报》2007年第1期14-19,共6页Journal of Harbin Institute of Technology

基　　金：中国博士后基金资助项目(2005038199);黑龙江省自然科学基金重点资助项目(ZJG04-08)

摘　　要：采用复变函数论的方法,对复合材料的非对称动态扩展裂纹问题进行研究.建立复合材料一种非对称动态扩展裂纹的模型.采用自相似函数的方法对坐标原点受到脉冲载荷、增加载荷Pt作用下的动态问题分别进行研究,获得了应力、位移和应力强度因子的解析解.By the theory of complex functions, asymmetrically dynamic propagation crack problems concerning composite materials are researched. A model of an asymmetrically dynamic propagation crack is established. The dynamic problems under the action of pulse loads and increasing loads Pt located at the origin of the coordinates respectively, are studied, and analytical solution on stresses, displacements and stress intensity factors is obtained.

关 键 词：复合材料 裂纹 动态模型 解析解 

分 类 号：O346.1[理学—固体力学]