Abstract
It is well recognized that the contact stiffness is one of the key features in the study of friction system behavior. The stiffness of a rough surface influences the contact state as well as the behavior of the surrounding system. It is the goal of this work to investigate the elastic deformation of surface asperities and propose mathematical model in treating its influence. The mathematical model of contact is utilized to develop formulae for normal and tangential contact stiffness. Stiffness values for the sample are derived from the surface profile data taken from a 1.0-mm by 10-mm test area. The profile is measured using a Mahr profilometer. A computer program is developed and used to analyze the profile data to yield the asperity density, average asperity radius, and the standard deviation for each test area. Examining the results show that both normal and tangential contact stiffness decrease exponentially with normalized separation. As the normalized separation increases both normal and tangential stiffness become very small and insensitive for the high normalized separation.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the IASTED International Conference on Modelling, Simulation, and Optimization |
| Pages | 91-96 |
| Number of pages | 6 |
| Volume | 2005 |
| Publication status | Published - 2005 |
| Event | 5th IASTED International Conference on Modelling, Simulation, and Optimization - Oranjestad, Aruba Duration: Aug 29 2005 → Aug 31 2005 |
Other
| Other | 5th IASTED International Conference on Modelling, Simulation, and Optimization |
|---|---|
| Country | Aruba |
| City | Oranjestad |
| Period | 8/29/05 → 8/31/05 |
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Keywords
- Contact model
- Contact stiffness
ASJC Scopus subject areas
- Engineering(all)
Cite this
Modeling of normal and tangential contact stiffness of rough surfaces. / Abdo, Jamil.
Proceedings of the IASTED International Conference on Modelling, Simulation, and Optimization. Vol. 2005 2005. p. 91-96.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Modeling of normal and tangential contact stiffness of rough surfaces
AU - Abdo, Jamil
PY - 2005
Y1 - 2005
N2 - It is well recognized that the contact stiffness is one of the key features in the study of friction system behavior. The stiffness of a rough surface influences the contact state as well as the behavior of the surrounding system. It is the goal of this work to investigate the elastic deformation of surface asperities and propose mathematical model in treating its influence. The mathematical model of contact is utilized to develop formulae for normal and tangential contact stiffness. Stiffness values for the sample are derived from the surface profile data taken from a 1.0-mm by 10-mm test area. The profile is measured using a Mahr profilometer. A computer program is developed and used to analyze the profile data to yield the asperity density, average asperity radius, and the standard deviation for each test area. Examining the results show that both normal and tangential contact stiffness decrease exponentially with normalized separation. As the normalized separation increases both normal and tangential stiffness become very small and insensitive for the high normalized separation.
AB - It is well recognized that the contact stiffness is one of the key features in the study of friction system behavior. The stiffness of a rough surface influences the contact state as well as the behavior of the surrounding system. It is the goal of this work to investigate the elastic deformation of surface asperities and propose mathematical model in treating its influence. The mathematical model of contact is utilized to develop formulae for normal and tangential contact stiffness. Stiffness values for the sample are derived from the surface profile data taken from a 1.0-mm by 10-mm test area. The profile is measured using a Mahr profilometer. A computer program is developed and used to analyze the profile data to yield the asperity density, average asperity radius, and the standard deviation for each test area. Examining the results show that both normal and tangential contact stiffness decrease exponentially with normalized separation. As the normalized separation increases both normal and tangential stiffness become very small and insensitive for the high normalized separation.
KW - Contact model
KW - Contact stiffness
UR - http://www.scopus.com/inward/record.url?scp=33751201560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33751201560&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0889865264
SN - 9780889865266
VL - 2005
SP - 91
EP - 96
BT - Proceedings of the IASTED International Conference on Modelling, Simulation, and Optimization
ER -