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Effect of tip radius on nanoindentation

Published online by Cambridge University Press:  31 January 2011

C.W. Shih ,
M. Yang  and
J.C.M. Li
C.W. Shih
Affiliation:
Materials Science Program, Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627
M. Yang
Affiliation:
Materials Science Program, Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627
J.C.M. Li
Affiliation:
Materials Science Program, Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627
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Abstract

The blunt tip geometry of the so-called nanoindenter is modeled by a spherical cap of various radii. The relation between area and penetration depth of the indenter is comparable with experimental results if the radius of the tip is about 1.0 μm. Simulation of indentation tests was carried out using the finite element method by incremental loading and unloading based on a continuum model. Good agreement with the experimental results for nickel is obtained also for a tip radius of 1.0 μm.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 12 , December 1991 , pp. 2623 - 2628
Copyright
Copyright © Materials Research Society 1991

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