Numerical analysis of SH wave field calculations for various types of a multilayered anisotropic inclusion

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• 作者：Jungki Lee ; ^{inq3jkl@wow.hongik.ac.kr" class="auth_mail" title="E-mail the corresponding author} ; Hyechang Lee ; Hogwan Jeong
• 关键词：SH waves ; Scattering ; A multilayered anisotropic inclusion ; Circular/Elliptical inclusion ; Parallel volume integral equation method ; Boundary integral equation method
• 刊名：Engineering Analysis with Boundary Elements
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：64
• 期：Complete
• 页码：38-67
• 全文大小：16915 K

文摘

The Parallel Volume Integral Equation Method (PVIEM) is applied for the analysis of elastic wave scattering problems in an unbounded isotropic solid containing various types of a multilayered anisotropic inclusion. It should be noted that this numerical method does not require the use of the Green׳s function for the multilayered anisotropic inclusion-only the Green׳s function for the unbounded isotropic matrix is needed. This method can also be applied to solve general elastodynamic problems involving arbitrary shape and number of inhomogeneous and/or multilayered anisotropic inclusions. A detailed analysis of the SH wave scattering is presented for various types of a multilayered orthotropic inclusion. Numerical results are presented for the displacement and stress fields at the interfaces of the multilayered inclusion in a broad frequency range. Parallel volume integral equation method as a pioneer of numerical analysis enables us to investigate the effects of single/multiple layer(s), multilayer׳s shape and geometry, isotropy/anisotropy, and softness/hardness of the multilayered anisotropic inclusion on displacements and stresses at the interfaces of the inclusion.