岩土力学Issue(8)：2378-2384,7.
SH 波上方垂直入射时界面附近椭圆夹杂与裂纹的动态响应
Dynamic response of elliptical inclusion and crack near interface under vertically incident SH-wave from above
摘要
Abstract
Green’s function method and "conformal mapping" technology are used to analyze interaction of an elliptical elastic inclusion and a crack at arbitrary position under incident SH-waves from above. The fundamental solution to the displacement field for elastic half space containing an elliptical inclusion while bearing a time harmonic out-plane line source load at any point was firstly constructed, namely the suitable Green’s function. Combined with “crack-division” technology, a beeline crack was then created to derive the displacement field and stress field of elastic half-space containing an elliptical elastic inclusion and a crack. Lastly, numerous numerical examples are given to discuss distribution regularities of dynamic stress concentration factor (DSCF) around the elliptical inclusion, the horizontal surface displacement and dynamic stress intensity factor (DSIF) at crack tip under different parameters, and the results demonstrate that variation of different parameters can bring certain effect on them.关键词
SH 波的散射/Green 函数/保角映射/夹杂与裂纹Key words
scattering of SH-waves/Green’s function/conformal mapping/interaction of inclusion and crack分类
通用工业技术引用本文复制引用
杨在林,许华南,黑宝平..SH 波上方垂直入射时界面附近椭圆夹杂与裂纹的动态响应[J].岩土力学,2013,(8):2378-2384,7.基金项目
国家自然科学基金资助（No.10972064）；中央高校基本科研业务费专项资金资助（No. HEUCFZ1125）。 （）
