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COUPLED THERMO-MECHANICAL ANALYSIS OF FUNCTIONALLY GRADIENT WEAK/MICRO-DISCONTINUOUS INTERFACE WITH GRADED FINITE ELEMENT METHOD |
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| Authors: | Zhiwen Gao Kang Yong Lee Youhe Zhou |
| Institution: | 1 ( 1 Key Laboratory of Mechanics on Western Disaster and Environment, Ministry of Education, P.R. China, and Department of Mechanics and Engineering Science, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu 730000, China) ( 2 State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China) ( 3 School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea) |
| Abstract: | Coupled thermo-mechanical analysis of two bonded functionally graded materials subjected to thermal loads is conducted in this study with the graded finite element method. The thermal-mechanical properties of the bi-material interfaces are classified based on discontinuity degrees of their material properties and their derivatives at the interfaces. Numerical results indicate that discontinuity exerts remarkable effect on the temperature profile and stress value at the interface of two bonded functionally-graded materials. Under the thermal flux loading conditions, the stronger the interface discontinuity is, the smaller the heat flux is. |
| Keywords: | functionally graded material thermo-mechanical analysis weak/micro discontin- uous graded finite element method |
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