| Strain gradient plasticity analysis of elasto-plastic contact between rough surfaces | |
Song H ; Van der Giessen, E; Liu X; Van der Giessen, E (reprint author), Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands.; Liu, X (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
| |
| Source Publication | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
 |
| 2016 | |
| Volume | 96Pages:18-28 |
| ISSN | 0022-5096 |
| Abstract | From a microscopic point of view, the real contact area between two rough surfaces is the sum of the areas of contact between facing asperities. Since the real contact area is a fraction of the nominal contact area, the real contact pressure is much higher than the nominal contact pressure, which results in plastic deformation of asperities. As plasticity is size dependent at size scales below tens of micrometers, with the general trend of smaller being harder, macroscopic plasticity is not suitable to describe plastic deformation of small asperities and thus fails to capture the real contact area and pressure accurately. Here we adopt conventional mechanism-based strain gradient plasticity (CMSGP) to analyze the contact between a rigid platen and an elasto-plastic solid with a rough surface. Flattening of a single sinusoidal asperity is analyzed first to highlight the difference between CMSGP and J(2) isotropic plasticity. For the rough surface contact, besides CMSGP, pure elastic and J(2) isotropic plasticity analysis is also carried out for comparison. In all cases, the contact area A rises linearly with the applied load, but with a different slope which implies that the mean contact pressures are different. CMSGP produces qualitative changes in the distributions of local contact pressures compared with pure elastic and J(2) isotropic plasticity analysis, furthermore, bounded by the two. (C) 2016 Elsevier Ltd. All rights reserved. |
| Keyword | Rough Surface Contact Strain Gradient Plasticity Pressure Distribution |
| DOI | 10.1016/j.jmps.2016.07.008 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000386744600002 |
| WOS Keyword | Rough surface ; Contact ; Strain gradient plasticity ; Pressure distribution |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Funding Organization | Foundation for Fundamental Research on Matter (FOM), Netherlands Organisation for Scientific Research (NWO) [13POF07-1] ; National Basic Research Program of China [2012CB937500] ; National Natural Science Foundation of China [11202214, 91216108, 11572329] ; State Key Laboratory of Mechanics and Control of Mechanical Structures (NUAA Grant) [MCMS-0114G01] ; State Key Laboratory of Structural Analysis for Industrial Equipment (DUT Grant) [GZ15116] |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59941 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Van der Giessen, E (reprint author), Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands.; Liu, X (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Song H,Van der Giessen, E,Liu X,et al. Strain gradient plasticity analysis of elasto-plastic contact between rough surfaces[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2016,96:18-28. |
| APA | Song H,Van der Giessen, E,Liu X,Van der Giessen, E ,&Liu, X .(2016).Strain gradient plasticity analysis of elasto-plastic contact between rough surfaces.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,96,18-28. |
| MLA | Song H,et al."Strain gradient plasticity analysis of elasto-plastic contact between rough surfaces".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 96(2016):18-28. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| IMCAS-J2016-316.pdf（1255KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment