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首页> 外文期刊>Journal of thermal stresses >Waves in dual-phase-lag thermoelastic materials with voids based on Eringen's nonlocal elasticity
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Waves in dual-phase-lag thermoelastic materials with voids based on Eringen's nonlocal elasticity

机译：双相滞后热弹性材料，基于eringen的非识别弹性的空隙

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摘要

The main idea of the present work is to extend Eringen's theory of nonlocal elasticity to generalized thermoelasticity with dual-phase-lag and voids. Then we study the propagation of time harmonic plane waves in an infinite nonlocal dual-phase-lag thermoelastic medium with voids. Three sets of coupled dilatational waves and an independent transverse wave may travel with distinct speeds through the medium. All these waves are found to be dispersive in nature. The coupled dilatational waves are damping, while the transverse wave is undamped in a certain range of the angular frequency. Coupled dilatational waves are found to be influenced by the presence of voids, thermal field and elastic nonlocal parameter, while the transverse wave is found to be influenced by the nonlocal parameter, but independent of void and thermal parameters. For a particular model, the effects of angular frequency, elastic nonlocality parameter, and some voids and thermal parameters on the wave speeds and damping coefficients of all the propagating waves have been studied numerically. Some comparisons are made between the results obtained for local and nonlocal cases. All the computed results have been depicted graphically and explained in details.
机译：本作工作的主要思想是将eringen的非局部弹性理论扩展到具有双相滞后和空隙的广义热弹性。然后，我们研究时间谐波平面波在具有空隙的无限非局部双相滞后热弹性介质中的传播。三组耦合扩张波和独立的横波可以通过介质以不同的速度行进。发现所有这些波都被发现在自然中是分散的。耦合扩张波是阻尼，而横波在角度频率的一定范围内被禁止。发现耦合扩张波被存在于空隙，热场和弹性非局部参数的存在影响，而发现横波受到非本体参数的影响，而是独立于无空隙和热参数。对于特定模型，已经在数值上研究了角频率，弹性非沉积物参数的影响以及所有传播波的波速和阻尼系数上的一些空隙和热参数。在局部和非局部病例获得的结果之间进行了一些比较。所有计算结果都已以图形方式描绘并详细解释。

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