Title: Study on affect factors of thermal contact stress of the gradient coating system based on numerical simulation

Authors: Bin Zhao

Addresses: School of Mechanical Engineering, Liaoning Shihua University, No. 1, West Dandong Road, Wanghua District, Fushun, Liaoning Province, 113001, China

Abstract: In order to study the contact stress of the coating system, the numerical simulation was carried out by the wavelet finite element method. Firstly, the wavelet finite element formula of the coating system was analysed. And then entity model of the coating system was established, and the boundary conditions and Hertz pressure were defined, and then the effect of the component of the Al₂O₃ on the thermal stress was analysed, and the results obtained from the wavelet finite element method and traditional finite element method were obtained, results showed that the wavelet finite element had higher precious and efficient, and finally the effect of the thickness of the coating on thermal stress was analysed.

Keywords: gradient coating systems; thermal stress; contact stress; numerical simulation; wavelets; finite element method; FEM; boundary conditions; Hertz pressure; coating thickness; alumina; aluminium oxide.

DOI: 10.1504/IJCAET.2012.048844

International Journal of Computer Aided Engineering and Technology, 2012 Vol.4 No.5, pp.488 - 496

Published online: 16 Aug 2014 *

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