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Title:
Contact behaviors of a rigid punch and a homogeneous half-space coated with a graded layer
Author: Chen PJ(陈培见); Chen SH(陈少华)
Source: ACTA MECHANICA
Issued Date: 2012-03-01
Volume: 223, Issue:3, Pages:563-577
Abstract: A contact model between a homogeneous half-space with a linearly graded layer and a rigid punch is proposed and studied in the present paper. The governing equation, which describes the relation of the displacements and the normal tractions at the contact interface, is obtained by means of Fourier transform and a transfer matrix method. Appropriate collocation methods are used in order to solve the equation numerically. Singular behaviors at the edge of a flat punch are revealed. Compared to the case with a graded surface varying according to an exponential law, stress concentration is relatively weaker in the case with the graded surface varying according to a linear law. Furthermore, stress distributions in cases of a flat or cylindrical punch are given for different varying graded laws, thickness of graded layer, ratios of stiffness, and frictional coefficients. All the results are helpful for the design of strong and wear resistance coating surfaces.
Keyword: Elastic Properties ; Coating/Substrate System ; Damage Resistance ; Flat Punch ; Coatings ; Gradients ; Mechanics ; Solids ; Deformation ; Indentation
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Chen, SH ; Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Correspondent Email: chenshaohua72@hotmail.com
Related URLs: 查看原文
WOS ID: WOS:000302239100009
ISSN: 0001-5970
Rank: [Chen, Peijian;Chen, Shaohua] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
Subject: 固体力学
Department: LNM仿生材料与固体的微尺度力学
Classification: 二类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/46674
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
Chen PJ,Chen SH. Contact behaviors of a rigid punch and a homogeneous half-space coated with a graded layer[J]. ACTA MECHANICA,2012-03-01,223(3):563-577.
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