Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer
The friction between a hard steel indenter and a soft elastomer is studied experimentally. To investigate the influence of roughness, a series of experiments was conducted utilizing an indenter with varying degrees of surface roughness. There is a strong adhesive interaction between the contacting b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-10-01
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| Online Access: | https://www.mdpi.com/2075-1702/12/11/754 |
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| author | Iakov A. Lyashenko Thao H. Pham Valentin L. Popov |
| author_facet | Iakov A. Lyashenko Thao H. Pham Valentin L. Popov |
| author_sort | Iakov A. Lyashenko |
| collection | DOAJ |
| description | The friction between a hard steel indenter and a soft elastomer is studied experimentally. To investigate the influence of roughness, a series of experiments was conducted utilizing an indenter with varying degrees of surface roughness. There is a strong adhesive interaction between the contacting bodies and the friction force is proportional to the real contact area. It has been shown that as the amplitude of roughness increases, the friction force initially rises due to the deformable elastomer filling the gaps between the roughness features, thereby increasing the real contact area. An increase in the roughness amplitude results in a more regular dependence of the friction force on the tangential displacement of the indenter. High-amplitude roughness prevents the propagation of elastic deformation waves (Schallamach waves) within the contact, which are responsible for the establishment of a “stick–slip” type of friction regime. The results of this study are of interest for technical applications in mechanical engineering, particularly those involving the production of rubber seals. |
| format | Article |
| id | doaj-art-a4e9aebaad5f42fdacf77f33350bc341 |
| institution | DOAJ |
| issn | 2075-1702 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj-art-a4e9aebaad5f42fdacf77f33350bc3412025-08-20T02:47:59ZengMDPI AGMachines2075-17022024-10-01121175410.3390/machines12110754Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer LayerIakov A. Lyashenko0Thao H. Pham1Valentin L. Popov2Department of System Dynamics and Friction Physics, Institute of Mechanics, Technische Universität Berlin, 10623 Berlin, GermanyDepartment of System Dynamics and Friction Physics, Institute of Mechanics, Technische Universität Berlin, 10623 Berlin, GermanyDepartment of System Dynamics and Friction Physics, Institute of Mechanics, Technische Universität Berlin, 10623 Berlin, GermanyThe friction between a hard steel indenter and a soft elastomer is studied experimentally. To investigate the influence of roughness, a series of experiments was conducted utilizing an indenter with varying degrees of surface roughness. There is a strong adhesive interaction between the contacting bodies and the friction force is proportional to the real contact area. It has been shown that as the amplitude of roughness increases, the friction force initially rises due to the deformable elastomer filling the gaps between the roughness features, thereby increasing the real contact area. An increase in the roughness amplitude results in a more regular dependence of the friction force on the tangential displacement of the indenter. High-amplitude roughness prevents the propagation of elastic deformation waves (Schallamach waves) within the contact, which are responsible for the establishment of a “stick–slip” type of friction regime. The results of this study are of interest for technical applications in mechanical engineering, particularly those involving the production of rubber seals.https://www.mdpi.com/2075-1702/12/11/754adhesionfrictionreal contact areatangential stressindentationroughness |
| spellingShingle | Iakov A. Lyashenko Thao H. Pham Valentin L. Popov Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer Machines adhesion friction real contact area tangential stress indentation roughness |
| title | Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer |
| title_full | Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer |
| title_fullStr | Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer |
| title_full_unstemmed | Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer |
| title_short | Friction in Adhesive Contact Between a Rough Hard Indenter and Smooth Soft Elastomer Layer |
| title_sort | friction in adhesive contact between a rough hard indenter and smooth soft elastomer layer |
| topic | adhesion friction real contact area tangential stress indentation roughness |
| url | https://www.mdpi.com/2075-1702/12/11/754 |
| work_keys_str_mv | AT iakovalyashenko frictioninadhesivecontactbetweenaroughhardindenterandsmoothsoftelastomerlayer AT thaohpham frictioninadhesivecontactbetweenaroughhardindenterandsmoothsoftelastomerlayer AT valentinlpopov frictioninadhesivecontactbetweenaroughhardindenterandsmoothsoftelastomerlayer |