Finite Element Simulation of Thermal Sliding Friction and Wear in an FGPM-Coated Half-Plane

Lingfeng Gao, Jing Liu (), Jiajia Mao and Kaiwen Xiao
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Lingfeng Gao: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China
Jing Liu: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China
Jiajia Mao: Department of Mechanics, School of Mathematics, Statistics and Mechanics, Beijing University of Technology, Beijing 100124, China
Kaiwen Xiao: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China

Mathematics, 2025, vol. 13, issue 21, 1-19

Abstract: This study investigates the thermoelastic frictional contact and wear behavior during reciprocating sliding of a conductive cylindrical punch on a functionally graded piezoelectric material (FGPM)-coated half-plane. The thermo-electro-elastic properties of the coating vary continuously along the thickness direction according to arbitrary gradient functions, with thermal parameters being temperature-dependence. A theoretical framework for the coupled thermo-electro-elastic frictional contact problem is developed and solved using the finite element method. A sequential coupling approach is employed to integrate thermoelastic frictional contact with piezoelectric effects. Furthermore, wear on the coating surface is modeled using an improved Archard formulation, accounting for its impact on thermal sliding frictional contact characteristics. Numerical simulations examine the influence of wear, cycle number, friction coefficient, gradient index and gradient form on the coupled thermo-electro-elastic response of the FGPM coating structure. The numerical results demonstrate the gradient index and gradient form can effectively mitigate thermo-electrical contact-induced damage and reduce friction and wear in piezoelectric materials.

Keywords: functionally graded piezoelectric materials; finite element method; coated half-plane; thermal sliding friction; piezoelectric; wear (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2025
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