SCATTERING OF COMPLEX DEFECTS NEAR BIMATERIALS INTERFACE BY INCIDENT SH-WAVES

Category: ICETI 2017
Author: Huanan Xu, Xiaohuan Deng, Ke Zhang, Shuimei Chen
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The methods of conformal mapping and Green's function are developed to report interaction of complex defects (an elliptical cavity and a crack) near bimaterials interface under incident SH waves. Firstly, the bimaterials is subdivided along the horizontal interface into an elastic half space convolving an elliptical cavity and a full elastic half space possessing a crack. Using the method of Green’s function, a crack at the full elastic half space is created combined with “crack-division”, and thus expressions of displacement and stress are derived while the cavity co-exists with the crack. Undetermined anti-plane forces are loaded on the horizontal surfaces for conjunction of two half-spaces and then settled using a series of Fredholm integral equations on account of continuity conditions of the interface. Finally, this paper gives vast numerical results to discuss influence law of different parameters on dynamic stress concentration factors around the cavity. 

Pages 73-77
Year 2017
Issue 2
Volume 1

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