PROPAGATION OF HARMONIC THERMOELASTIC WAVES IN GENERAL-THEORY OF HEAT-CONDUCTION WITH FINITE WAVE SPEEDS

被引：0
|
作者：
SHASHKOV, AG
YANOVSKY, SY
机构：
[1] BSSR Academy of Sciences, Institute of Applied Physics, Minsk
来源：
JOURNAL OF THERMAL STRESSES | 1994年 / 17卷 / 01期
关键词：
Approximation theory - Damping - Dispersion (waves) - Harmonic analysis - Heat conduction - Mathematical models - Numerical methods - Velocity - Wave propagation;
D O I：
10.1080/01495739408946249
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The linear Chen-Gurtin theory of heat conduction in deformable materials is used to study the propagation of one-dimensional harmonic waves in infinite media with thermal memory. A dispersion relation is derived and asymptotic dependences for phase velocities and damping coefficients of waves are investigated. As a result of the dispersion equation numerical solution, the frequency dependences of phase velocities and damping coefficients of thermoelastic waves are obtained and analyzed. It is shown that with allowance for the thermal memory the solution yields increased velocities and enchanced damping of thermoelastic waves as compared to the Lord-Shulman generalized thermomechanical model (GT-model).
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页码：101 / 114
页数：14
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