Thermoelastic Behavior in Metal Films Induced by Ramp-type Heating

摘要：

In metal thin film, two effects become dominant. One is the non-Fourier effect in heat conduction, and the other is the coupling effect between the temperature and strain rate. In the present paper, an ultrafast thermeetosticity model utilizing the parabolic twostep heat conduction model and the generalized thermoelastic theory was formulated to describe the thermoelastic behavior of a thin metal film subjected to a ramp-type heating. An analytical-numerical technique based on the Laplace transform was used to solve the governing equations and the time histories of the electron temperature, lattice temperature, displacement and stress in a gold film were analyzed. The influence of the thickness of the film was also analyzed. In addition, the propagation of the stress wave through the film was analyzed.

关键词： ramp-type heating metal film two-step heat conduction thermomechanical coupling stress wave

作者: Yuxin Sun Yan Jiang Jialing Yang

作者单位: The Solid Mechanics Research Centre Beijing University of Aeronautics and Astronautics, Beijing 100191, P. R. China

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 1050-1053

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）