Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method
In this study, in-situ observations of a contact interface between a transparent rubber hemisphere made of PDMS (poly dimethyl siloxane) and a smooth plate made of PMMA (polymethyl methacry- late) were performed. Using a reflective optics, the space distribution of real contact regions formed in the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2015-09-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00316/_pdf/-char/en |
| _version_ | 1828192534323527680 |
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| author | Satoru MAEGAWA Fumihiro ITOIGAWA Takashi NAKAMURA |
| author_facet | Satoru MAEGAWA Fumihiro ITOIGAWA Takashi NAKAMURA |
| author_sort | Satoru MAEGAWA |
| collection | DOAJ |
| description | In this study, in-situ observations of a contact interface between a transparent rubber hemisphere made of PDMS (poly dimethyl siloxane) and a smooth plate made of PMMA (polymethyl methacry- late) were performed. Using a reflective optics, the space distribution of real contact regions formed in the apparent contact region was visualized. Additionally, the normal load dependence of friction force that acts on the contact interface was also investigated. As a result, it was found that the classical Amontons' friction law breaks down in this system; friction coefficient gradually decreased with increasing normal load. Based on Persson's contact theory, we discussed the mechanism of the normal load dependence of real contact area and friction coefficient. Finally, a novel method for estimating the real contact area and shear strength in sliding friction of a rubber like material was developed. The use of this method allows to estimate the real contact area and shear strength without any optical measurements of contact interfaces. |
| first_indexed | 2024-04-12T08:56:54Z |
| format | Article |
| id | doaj.art-37ce0b47a6ac477d9ee544faff204edd |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T08:56:54Z |
| publishDate | 2015-09-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-37ce0b47a6ac477d9ee544faff204edd2022-12-22T03:39:22ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612015-09-018183015-0031615-0031610.1299/transjsme.15-00316transjsmeNormal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation methodSatoru MAEGAWA0Fumihiro ITOIGAWA1Takashi NAKAMURA2Department of Mechanical Engineering, Nagoya Institute of TechnologyDepartment of Mechanical Engineering, Nagoya Institute of TechnologyDepartment of Mechanical Engineering, Nagoya Institute of TechnologyIn this study, in-situ observations of a contact interface between a transparent rubber hemisphere made of PDMS (poly dimethyl siloxane) and a smooth plate made of PMMA (polymethyl methacry- late) were performed. Using a reflective optics, the space distribution of real contact regions formed in the apparent contact region was visualized. Additionally, the normal load dependence of friction force that acts on the contact interface was also investigated. As a result, it was found that the classical Amontons' friction law breaks down in this system; friction coefficient gradually decreased with increasing normal load. Based on Persson's contact theory, we discussed the mechanism of the normal load dependence of real contact area and friction coefficient. Finally, a novel method for estimating the real contact area and shear strength in sliding friction of a rubber like material was developed. The use of this method allows to estimate the real contact area and shear strength without any optical measurements of contact interfaces.https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00316/_pdf/-char/enrubberreal contact areashear strengthkinetic friction coefficientamontons's law |
| spellingShingle | Satoru MAEGAWA Fumihiro ITOIGAWA Takashi NAKAMURA Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method Nihon Kikai Gakkai ronbunshu rubber real contact area shear strength kinetic friction coefficient amontons's law |
| title | Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| title_full | Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| title_fullStr | Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| title_full_unstemmed | Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| title_short | Normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| title_sort | normal pressure dependence of real contact area between a rubber hemisphere and a rigid plane and its estimation method |
| topic | rubber real contact area shear strength kinetic friction coefficient amontons's law |
| url | https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00316/_pdf/-char/en |
| work_keys_str_mv | AT satorumaegawa normalpressuredependenceofrealcontactareabetweenarubberhemisphereandarigidplaneanditsestimationmethod AT fumihiroitoigawa normalpressuredependenceofrealcontactareabetweenarubberhemisphereandarigidplaneanditsestimationmethod AT takashinakamura normalpressuredependenceofrealcontactareabetweenarubberhemisphereandarigidplaneanditsestimationmethod |