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Contact mechanics for coated spheres that includes the transition from weak to strong adhesion

Published online by Cambridge University Press:  31 January 2011

E.D. Reedy Jr.
E.D. Reedy Jr.*
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
*
a)Address all correspondence to this author. e-mail: edreedy@sandia.gov
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Abstract

Recently published results for a rigid spherical indenter contacting a thin, linear elastic coating on a rigid planar substrate have been extended to include the case of two contacting spheres, where each sphere is rigid and coated with a thin, linear elastic material. This is done by using an appropriately chosen effective radius and coating modulus. The earlier work has also been extended to provide analytical results that span the transition between the previously derived Derjaguin–Müller–Toporov (DMT)-like (work of adhesion/coating-modulus ratio is small) and Johnson–Kendall–Roberts (JKR)-like (work of adhesion/coating-modulus ratio is large) limits.

Keywords

AdhesionCoatingSimulation
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 9 , September 2007 , pp. 2617 - 2622
Copyright
Copyright © Materials Research Society 2007

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