| Influences of Morphology Parameters on the Contact Behavior of a Steel Interface | |
Fan LF1; Zhao L1; Liu XM(刘小明)2
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| Corresponding Author | Liu, X. M.(xiaomingliu@imech.ac.cn) |
| Source Publication | INTERNATIONAL JOURNAL OF APPLIED MECHANICS
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| 2020 | |
| Volume | 12Issue:1Pages:28 |
| ISSN | 1758-8251 |
| Abstract | The surface roughness induced by geometric irregularities (asperities) has substantial influence on the contact stiffness, which further affects the working performance and service life of mechanical equipment. In this study, an elastic-plastic contact law between a sinusoidal asperity and a rigid smooth flat is first studied, which is then applied on a statistical model to simulate the contact behavior of a pair of 18CrMo4 steel surfaces to investigate the influences of morphology parameters on the contact stiffness. The analysis shows that smaller shape ratios xi and larger wavelengths lambda induce larger normal contact stiffness K-n for surfaces with identical roughness, wherein the roughness is defined by the mean value of asperity heights R-a and the standard deviation of asperity heights R-q. The normal contact stiffness increases as R-a decreases under the same loading conditions, while the normal contact stiffness increases as R-q decreases for surfaces with a fixed R-a. Besides, the normal pressure and normal contact, stiffness derived from the proposed contact model are validated. The results demonstrate the potential of the proposed model in contact design due to its ability of establishing the relations between the normal contact stiffness and surface morphology parameters. |
| Keyword | Sinusoidal asperities contact stiffness elastic-plastic statistical model 18CrMo4 steel interface morphology parameters |
| DOI | 10.1142/S175882512050009X |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000525349500009 |
| WOS Keyword | FINITE-ELEMENT-ANALYSIS ; PLASTIC CONTACT ; SINUSOIDAL ASPERITY ; SURFACE-ROUGHNESS ; MODAL-ANALYSIS ; STIFFNESS ; MODEL ; DEFORMATION ; PRESSURE ; AREA |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | National Natural Science Foundation of China[11772334] ; National Natural Science Foundation of China[11572329] ; National Natural Science Foundation of China[11672301] ; National Key R&D Program of China[2017YFA0204402] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Program of China ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | Q3 |
| Ranking | 1 |
| Contributor | Liu, X. M. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81883 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China; 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100124, Peoples R China |
| Recommended Citation GB/T 7714 | Fan LF,Zhao L,Liu XM. Influences of Morphology Parameters on the Contact Behavior of a Steel Interface[J]. INTERNATIONAL JOURNAL OF APPLIED MECHANICS,2020,12,1,:28. |
| APA | Fan LF,Zhao L,&刘小明.(2020).Influences of Morphology Parameters on the Contact Behavior of a Steel Interface.INTERNATIONAL JOURNAL OF APPLIED MECHANICS,12(1),28. |
| MLA | Fan LF,et al."Influences of Morphology Parameters on the Contact Behavior of a Steel Interface".INTERNATIONAL JOURNAL OF APPLIED MECHANICS 12.1(2020):28. |
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| Jp2020097.pdf（3218KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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