Finite Element Analysis of Thermal Stresses in Ceramic/Metal Gradient Thermal Barrier Coatings

武汉理工大学学报-材料科学版(英文版), 2005, 20(3): 44-47.

^1, , ^2, , ^3, , ^4,

1.School of Automotive Engineering, Wuhan University of Technology, Whan 430070, China

2.School of Automotive Engineering, Wuhan University of Technology, Whan 430070, China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070, China

3.Schooi of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063,China

4.Cummins Engine Company, Columbus, IN 47202, USA

基金项目: 中国科学院资助项目(59405009) 湖北省自然科学基金(2003ABA088)

Finite Element Analysis of Thermal Stresses in Ceramic/Metal Gradient Thermal Barrier Coatings

MING Pingshun ^1, , XIAO Jinsheng ^2, , LIU Jie ^3, , ZHOU Xiaoqin ^4,

1.School of Automotive Engineering, Wuhan University of Technology, Whan 430070, China

2.School of Automotive Engineering, Wuhan University of Technology, Whan 430070, China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070, China

3.Schooi of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063,China

4.Cummins Engine Company, Columbus, IN 47202, USA

Keywords： functionally gradient material

This paper studied the thermal stresses of ceramic/metal gradient thermal barrier coating which combines the conceptions of ceramic thermal barrier coating (TBC) and functionally gradient material (FGM). Thermal stresses and residual thermal stresses were calculated by an ANSYS finite element analysis software. Negative thermal expansion coefficient method was proposed and element birth and death method was applied to analyze the residual thermal stresses which have non-uniform initial temperature field. The numerical results show a good agreement with the analytical results and the experimental results.

参考文献

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[3]	XIAO Jin-sheng;JIANG Bing;LIU Jie .Microstructures and Mechanical Properties of Ceramic/Metal Gradient Thermal Barrier Coatings[J].Journal of Wuhan University of Technology.Materials Science edition,2003(4):38-40.
[4]	Xiao J S;Wen D S;Lu Y B.Simulation and Design for the Microstructures of Ceramic/Metal Gradient Thermal Barrier Coatings[A].Tsu,Japan,1997:605-612.
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[6]	Zemitis W S.Finite Element Simulation of Orthogonal Metal Cutting from Incipient Chip Formation to Steady-State Cutting Using an Element Death Technique[A].ANSYS Inc,1996

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