| In-situ measurements of contact evolution for fractal rough surfaces under normal compression | |
| Huang, Shaoqi1; Wei, Deheng2,3,4; Han, Wenwen1; Song HX(宋恒旭)5,6; Song, Siyang1; Gan, Yixiang3,7; Zhai, Chongpu1,8; Xu, Minglong1 | |
| Corresponding Author | Zhai, Chongpu([email protected]) ; Xu, Minglong([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
 |
| 2024-07-01 | |
| Volume | 297Pages:15 |
| ISSN | 0020-7683 |
| Abstract | The contact interface plays a key role in the overall functionality and stability of structures. Understanding the evolution of the contact interface over time and its dependency on materials and load is crucial for functional integrity and operational safety assessment. In this study, we employ in-situ three-dimensional X-ray computed tomography (3DXRCT) to examine the creep behavior of 3D-printed surfaces exhibiting various roughness under constant normal compression. We observe that the overall contact area enlargement during the contact creep decreases with roughness amplitude and fractal dimension. The variation of interfacial separation distance is found to increase with roughness amplitude and decrease with fractal dimension. Correlation analysis reveals that the microcontact size played a more important role than the asperity shape in determining the microcontact enlargement. By examining the calculated interfacial strains extracted from XRCT measurements, significant deformations are found to occur at the non-contacting zones, indicating strong asperity interactions. This study offers high-resolution experimental measurements and unravels the asperity micromechanics for contact creep on rough surfaces, providing insights into understanding and optimizing the performance of rough interfaces. |
| Keyword | Surface roughness Contact creep Fractal dimension Interfacial separation distance Contact area |
| DOI | 10.1016/j.ijsolstr.2024.112841 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001235964600001 |
| WOS Keyword | DIGITAL VOLUME CORRELATION ; ASPERITY INTERACTIONS ; DIMENSION ; BEHAVIOR ; MODEL ; CREEP ; STIFFNESS ; TEMPERATURE ; FRICTION ; STYLUS |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | National Natural Science Foundation of China (NSFC)[12202342] ; Xian Jiaotong University[LX6J018] ; Xian Jiaotong University[XZY012021003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0620101] |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Xian Jiaotong University ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 一类/力学重要期刊 |
| Ranking | 3+ |
| Contributor | Zhai, Chongpu ; Xu, Minglong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95490 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China; 2.Northeastern Univ, Sch Resources & Civil Engn, Key Lab, Minist Educ Safe Min Deep Mines, Shenyang 110819, Peoples R China; 3.Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia; 4.Rhein Westfal TH Aachen, Inst Geomech & Underground Technol, Mies van der Rohe Str 1, D-52074 Aachen, Germany; 5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 6.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 7.Univ Sydney, Sydney Nano Inst, Sydney, NSW 2006, Australia; 8.Xi An Jiao Tong Univ, Sch Aerosp Engn, Shanxi Key Lab Vibrat & Control Aerosp Struct, Xian 710049, Peoples R China |
| Recommended Citation GB/T 7714 | Huang, Shaoqi,Wei, Deheng,Han, Wenwen,et al. In-situ measurements of contact evolution for fractal rough surfaces under normal compression[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2024,297:15.Rp_Au:Zhai, Chongpu, Xu, Minglong |
| APA | Huang, Shaoqi.,Wei, Deheng.,Han, Wenwen.,宋恒旭.,Song, Siyang.,...&Xu, Minglong.(2024).In-situ measurements of contact evolution for fractal rough surfaces under normal compression.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,297,15. |
| MLA | Huang, Shaoqi,et al."In-situ measurements of contact evolution for fractal rough surfaces under normal compression".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 297(2024):15. |
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