Thermoelastic Waves in an Anisotropic Cylinder
Thermoelastic Waves in an Anisotropic Cylinder
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DOI：
10.1080/01495730903409284
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发表时间：
2010-01
影响因子：
2.8
通讯作者：
Ravi Chitikireddy;H. Bai;A. H. Shah;S. Datta
中科院分区：
文献类型：
--
作者：
Ravi Chitikireddy;H. Bai;A. H. Shah;S. Datta
本文在Lord-Shulman广义热弹性理论的背景下，研究了热弹性波在无限圆柱体中的传播。本文给出了求解多层圆柱的一种归一化方法。采用半解析有限元公式对频谱进行了研究。将各向同性铜圆柱的色散结果与解析方法的预测结果进行了比较，验证了这一结论。由于该方法可用于各向异性复合材料圆柱体，因此给出了氮化硅和两层（锌和氮化硅）复合材料圆柱体的数值结果作为说明。
The study of propagation of thermoelastic waves in an infinite cylinder has been presented here in the context of Lord–Shulman generalized theory of thermoelasticity. A normalization procedure is presented here for solving multilayer cylinders. A semi-analytical finite element formulation is employed to study the frequency spectra. It is verified by comparing the wave dispersion results for an isotropic copper cylinder with the predictions of the analytical method. Since this method can be used for an anisotropic composite cylinder, numerical results for a silicon nitride and a two-layered (zinc and silicon nitride) composite cylinder are presented as illustrative examples.