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SCATTERING OF SH WAVE BY CRACKS ORIGINATING AT A CIRCULAR HOLE EDGE AND DYNAMIC STRESS INTENSITY FACTOR 1)
Author(s): 
Pages: 37-44
Year: Issue:  3
Journal: Acta Mechanica Sinica

Keyword:  孔边裂纹 Green函数 SH波散射 动应力强度因子(DSIF) 积分方程;
Abstract: 采用Green函数法研究任意有限长度的孔边裂纹对SH波的散射和裂纹尖端场动应力强度因子的求解.取含有半圆形缺口的弹性半空间水平表面上任意一点承受时间谐和的出平面线源荷载作用时位移函数的基本解作为Green函数,采用裂纹“切割”方法并根据连接条件建立起问题的定解积分方程,得到动应力强度因子的封闭解答.最后给出了孔边裂纹动应力强度因子的算例和结果,并讨论了圆孔的存在对动应力强度因子的影响
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