Progress in contact mechanics of a type of functional gradient materials |
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| Authors: | Peijian Chen Shaohua Chen |
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| Institution: | 1.School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;2.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;3.LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | In regard to a type of materials with gradient varying Young's modulus in the depth direction, considering the effects of interfacial friction, fretting and adhesion, the influences of finite scale of materials, the varying gradient law, thickness of gradient coating, thermo-friction of interface and the shape of punch on the surface contact features are summarized. The performance of resistance to wear of the gradient material surface is mainly analyzed according to the interfacial contact stresses in different contact models. Unsolved problems and prospects of future study on contact mechanics of functional gradient materials are suggested finally. |
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| Keywords: | Functional gradient material | surface contact mechanics| finite thickness| friction| wear| adhesion |
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