A finite element contact model of a layered hemisphere with a rigid flat, which includes the effect of adhesion, is developed. This configuration has been suggested as a design for a microswitch contact because it has the potential to achieve low adhesion, low contact resistance, and high durability. Elastic-plastic material properties were used for each of the materials comprising the layered hemisphere. Adhesion was modeled based on the Lennard-Jones potential. The effect of the layer thickness on the adhesive contact was investigated. In particular the influence of layer thickness on the pull-off force and maximum contact radius was studied. The results are presented as load vs. interference and contact radius vs. interference for loading and unloading from different values of the maximum interference.
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STLE/ASME 2010 International Joint Tribology Conference
October 17–20, 2010
San Francisco, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4419-9
PROCEEDINGS PAPER
Contact and Adhesion of Elastic-Plastic Layered Microsphere Available to Purchase
N. E. McGruer,
N. E. McGruer
Northeastern University, Boston, MA
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G. G. Adams
G. G. Adams
Northeastern University, Boston, MA
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H. Eid
Northeastern University, Boston, MA
L. Chen
Northeastern University, Boston, MA
N. Joshi
Northeastern University, Boston, MA
N. E. McGruer
Northeastern University, Boston, MA
G. G. Adams
Northeastern University, Boston, MA
Paper No:
IJTC2010-41203, pp. 341-343; 3 pages
Published Online:
April 14, 2011
Citation
Eid, H, Chen, L, Joshi, N, McGruer, NE, & Adams, GG. "Contact and Adhesion of Elastic-Plastic Layered Microsphere." Proceedings of the STLE/ASME 2010 International Joint Tribology Conference. STLE/ASME 2010 International Joint Tribology Conference. San Francisco, California, USA. October 17–20, 2010. pp. 341-343. ASME. https://doi.org/10.1115/IJTC2010-41203
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