GUIDED THERMOELASTIC WAVE PROPAGATION IN LAYERED PLATES WITHOUT ENERGY DISSIPATION  

作　　者：Jiangong Yu Bin Wu Cunfu He 

机构地区：[1]School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, China [2]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing 100022, China

出　　处：《Acta Mechanica Solida Sinica》2011年第2期135-143,共9页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 10802027)

摘　　要：In this paper, the propagation of guided thermoelastic waves in laminated orthotropic plates subjected to stress-free, isothermal boundary conditions is investigated in the context of the Green-Naghdi （GN） generalized thermoelastic theory （without energy dissipation）. The coupled wave equations and heat conduction equation are solved by the Legendre orthogonal polynomial series expansion approach. The validity of the method is confirmed through a comparison. The dispersion curves of thermal modes and elastic modes are illustrated simultaneously. Dispersion curves of the corresponding pure elastic plate are also shown to analyze the influence of the thermoelasticity on elastic modes. The displacement and temperature distributions are shown to discuss the differences between the elastic modes and thermal modes.In this paper, the propagation of guided thermoelastic waves in laminated orthotropic plates subjected to stress-free, isothermal boundary conditions is investigated in the context of the Green-Naghdi （GN） generalized thermoelastic theory （without energy dissipation）. The coupled wave equations and heat conduction equation are solved by the Legendre orthogonal polynomial series expansion approach. The validity of the method is confirmed through a comparison. The dispersion curves of thermal modes and elastic modes are illustrated simultaneously. Dispersion curves of the corresponding pure elastic plate are also shown to analyze the influence of the thermoelasticity on elastic modes. The displacement and temperature distributions are shown to discuss the differences between the elastic modes and thermal modes.

关 键 词：guided thermoelastic waves without energy dissipation layered plates orthotropic materials Legendre polynomial dispersion curves 

分 类 号：O343.6[理学—固体力学] TU435[理学—力学]