Article
Dislocation-indenter interaction in nanoindentation
Journal of Applied Physics
(2005)
Abstract
A formulation of dislocation-indenter interaction in two-dimensional, isotropic elasticity is presented. A significant dislocation-indenter interaction is predicted when dislocations are nucleated very close to the indenter. This interaction is expected to have an important influence on dislocation motion and multiplication. Upon nucleation close to the indenter, the dislocations are shown to modify the load, load distribution, and moment acting on the indenter. This effect is seen to vary with the indentation contact length. Further away from the indenter, the indenter-dislocation interaction is shown to be negligible.
Keywords
- indentation,
- dislocation motion,
- dislocation multiplication,
- dislocation interactions,
- dislocation nucleation,
- elasticity,
- mechanical contact
Disciplines
Publication Date
2005
Publisher Statement
Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in Journal of Applied Physics 98 (2005): 023502 and may be found at http://dx.doi.org/10.1063/1.1968443.
Citation Information
M. Ravi Shankar, Alexander H. King and Srinivasan Chandrasekar. "Dislocation-indenter interaction in nanoindentation" Journal of Applied Physics Vol. 98 Iss. 2 (2005) Available at: http://works.bepress.com/alex_king/28/