Scattering of cylindrical inclusions in half space with inhomogeneous shear modulus due to SH wave

Scattering of cylindrical inclusions in half space with inhomogeneous shear modulus due to SH wave
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SH波导致剪切模量不均匀的半空间圆柱形夹杂物的散射

DOI:
10.1007/s00419-021-01975-5
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发表时间:
2021-05
影响因子:
2.8
通讯作者:
Menghan Sun
Menghan Sun
中科院分区:
工程技术4区
文献类型:
--
作者:
Zailin Yang;Jinlai Bian;Yunqiu Song;Yong Yang;Menghan Sun

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讨论了非均匀介质中圆柱包裹体周围的动力响应。建立了非齐次半空间的数学模型。假定介质的剪切模量在二维上变化。基于复变函数理论,推导了控制方程。同时介绍了辅助功能。通过求解控制方程,得到了由贝塞尔函数和汉克尔函数构成的位移场和应力场的解析表达式。未知系数可由边界条件求得。通过数值算例,将本文的计算结果与已发表的结果进行了比较,验证了该方法的有效性。同时,讨论了非均匀参数、参考波数和埋藏位置对圆柱形包裹体周围动应力集中系数的影响。
Dynamic responses around cylindrical inclusion in inhomogeneous medium are discussed. A mathematical model of inhomogeneous half space is established. The shear modulus of the medium is assumed to change in two dimensions. Based on complex function theory, the governing equations are derived. Meanwhile, the auxiliary function is introduced. By solving the governing equation, the analytical expressions of the displacement field and stress field formed by Bessel function and Hankel function are obtained. The unknown coefficients can be obtained by boundary conditions. According to numerical examples, the results of this paper are compared with published results to verify the validity of the method. Meanwhile, the effects of inhomogeneous parameters, reference wave number and burial location on the dynamic stress concentration factor (DSCF) around a cylindrical inclusion are discussed.
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期刊: Journal of Applied Mechanics
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