A boundary element method for calculating elastic waves scattered by axisymmetric inclusion |
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Authors: | Liu Xingguo Zhong Weifang and Chen Baihong |
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Institution: | (1) Department of Mechanics, Huazhong University of Science & Technology, 430074 Wuhan, China |
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Abstract: | A Boundary Element Method (BEM) is described to compute the scattering of elastic waves by an axisymmetric inclusion in an
infinite elastic medium. The boundary loads applied to the inclusion is expanded in terms of Fourier series in an infinite
space. The boundary integral equation is solved in the general direction of the axisymmetric inclusion by BEM. The problem
of the 3-D scattering of elastic waves is reduced to a 1-Done. According to the geometric features of the axisymmetric in
clusion the ring shell elements are adopted in this method. A comparison is made with other BEM methods. The numerical results
show this method can reduce the amount of calculation and enhance the speed of convergence.
Supported by Foundation of Ph. D Program of State Education Commission of China |
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Keywords: | inclusion wave scattering boundary element method |
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