Abstract：The scattering of SH-wave by circular lining near bimaterial interface in half-space and dynamic stress concentration are studied, based on the complex function method and Green’s function method. The solution of present problem is given by “image” method. Firstly, a suitable Green’s function is constructed, which is the essential solution of displacement field for an elastic right-angle plane with a circular lining impacted by anti-plane harmonic line source loading at horizontal surface. Secondly, the method of “conjunction” is used to construct the scattering model of SH-wave, then a series of Fredholm integral equations of first kind for determining the unknown forces can be set up through continuity conditions that are expressed in terms of the Green's function. Finally, the numerical examples showed that the concentration of dynamic stress depended on the incident frequency and angle of SH-wave, the geometrical position of circular cavity, and the different media combination parameters.
2013, Vol. 34 
