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首页> 外文期刊>Applied Mathematical Modelling >Extensional and flexural modes of Rayleigh-Lamb wave in an orthotropic thermoelastic layer lying over a viscoelastic half-space
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Extensional and flexural modes of Rayleigh-Lamb wave in an orthotropic thermoelastic layer lying over a viscoelastic half-space

机译：在粘弹性半空间上的正交热弹性层中的瑞利羊毛波的射线和弯曲模式

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摘要

In this article the characteristics of the extensional and flexural modes, propagating in a thermoelastic orthotropic layer lying over a viscoelastic half-space, are analyzed. The complete analysis is carried out in the framework of a thermodynamically consistent hyperbolic type heat conduction model without energy dissipation. The normal-mode-analysis is adopted and a general form of dispersive equation is derived for an anisotropic thermoelastic layered medium. A prominent distinction with the isotropic elastic solids is observed in the symmetric as well as anti-symmetric modes of dispersion curves. In turn, such deformation reshapes the wave propagation while the deformation stiffening changes significantly the phase velocities of the wave till the acoustic radiation stresses are balanced by elastic stresses in the current configuration of the hyperelastic medium.
机译：在本文中，分析了在粘弹性半空间的热弹性正交层中传播的延伸和弯曲模式的特征。完全分析在热力学一致的双曲型导热模型的框架内进行，无能为力。采用正常模式分析，衍生出各向异性热弹性层状介质的一般形式的色散等式。在对称的情况下观察到与各向同性弹性固体的突出区别以及分散曲线的抗对称模式。反过来，这种变形在变形加强变化的同时使波传播变化显着变化，直到声辐射应力在高速介质的当前配置中通过弹性应力平衡。

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