Anti-plane shear Green's functions for an isotropic elastic half-space with a material surface

Anti-plane shear Green's functions for an isotropic elastic half-space with a material surface
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具有材料表面的各向同性弹性半空间的反平面剪切格林函数

DOI:
10.1016/j.ijsolstr.2010.03.007
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发表时间:
2010-06
影响因子:
3.6
通讯作者:
Zhang, C. Z.
Zhang, C. Z.
中科院分区:
工程技术2区
文献类型:
--
作者:
Chen, W. Q.;Zhang, C. Z.

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本文给出了各向同性弹性半空间反平面剪切变形的解析绿色解。半空间的边界被建模为一个物质表面,其中的Gurtin-Murdoch理论的表面弹性。利用傅里叶余弦变换,导出了在半空间内部和边界上作用点力时,用两个特殊积分表示的解析解。通过简单的数值算例,说明了表面弹性对半空间弹性场的影响。本文提出的绿色函数可用于更复杂问题的边界元分析。
This paper presents analytical Green’s function solutions for an isotropic elastic half-space subject to anti-plane shear deformation. The boundary of the half-space is modeled as a material surface, for which the Gurtin–Murdoch theory for surface elasticity is employed. By using Fourier cosine transform, analytical solutions for a point force applied both in the interior or on the boundary of the half-space are derived in terms of two particular integrals. Through simple numerical examples, it is shown that the surface elasticity has an important influence on the elastic field in the half-space. The present Green’s functions can be used in boundary element method analysis of more complicated problems.
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