With the emergence of micro- and nano-technology, the contact mechanics of MEMS & NEMS devices and components is becoming more important. The motivation for this work is to gain a better understanding of the role of coatings and thin films on micro- and nano-scale contact phenomena, and to understand the interactions of measurement devices, such as an Atomic Force Microscope (AFM), with layered media. The frictionless contact between a rigid spherical indenter and an elastic layered medium is the subject of this research. This configuration can be viewed as either a single asperity contact or as a building block of a multi-asperity rough surface contact model. As the scale decreases to the nano level, adhesion becomes an important issue in this contact problem. The presence of adhesion affects the relationships among the applied force, the penetration of the indenter and the size of the contact area. This axisymmetric problem includes the effect of adhesion using the Maugis model. This model spans the range of the Tabor parameter between the JKR and DMT regions. Key parameters have been identified which are the elastic moduli ratio of the layer and the substrate, the Poisson’s ratios, the dimensionless contact radius, the dimensionless layer thickness, and the adhesion parameter λ.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4201-0
PROCEEDINGS PAPER
Adhesion in the Contact of a Spherical Indenter With a Layered Medium
Asri Onur Sergici,
Asri Onur Sergici
Northeastern University, Boston, MA
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George G. Adams,
George G. Adams
Northeastern University, Boston, MA
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Sinan Mu¨ftu¨
Sinan Mu¨ftu¨
Northeastern University, Boston, MA
Search for other works by this author on:
Asri Onur Sergici
Northeastern University, Boston, MA
George G. Adams
Northeastern University, Boston, MA
Sinan Mu¨ftu¨
Northeastern University, Boston, MA
Paper No:
WTC2005-63382, pp. 263-264; 2 pages
Published Online:
November 17, 2008
Citation
Sergici, AO, Adams, GG, & Mu¨ftu¨, S. "Adhesion in the Contact of a Spherical Indenter With a Layered Medium." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 1. Washington, D.C., USA. September 12–16, 2005. pp. 263-264. ASME. https://doi.org/10.1115/WTC2005-63382
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