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Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material
Author(s): 
Pages: 1017-1027
Year: Issue:  9
Journal: APPLIED MATHEMATICS AND MECHANICS

Keyword:  动态应力强度因子裂纹扩展各向异性;
Abstract: 基于各向异性材料力学,研究了无限大各向异性材料中Ⅲ型裂纹的动态扩展问题.裂纹尖端的应力和位移被表示为解析函数的形式,解析函数可以表达为幂级数的形式,幂级数的系数由边界条件确定.确定了Ⅲ型裂纹的动态应力强度因子的表达式,得到了裂纹尖端的应力分量、应变分量和位移分量.裂纹扩展特性由裂纹扩展速度M和参数alpha反映,裂纹扩展越快,裂纹尖端的应力分量和位移分量越大;参数alpha对裂纹尖端的应力分量和位移分量有重要影响.
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