Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-28T20:39:15.206Z Has data issue: false hasContentIssue false
  • English
  • Français

On Effective Indenters Used in Nanoindentation Data Analysis

Published online by Cambridge University Press:  31 January 2011

Guanghui Fu ,
Ling Cao  and
Tiesheng Cao
Guanghui Fu
Affiliation:
guanghuifu@yahoo.com
Ling Cao
Affiliation:
lingcaodds@yahoo.com, LC Dental, Fremont, California, United States
Tiesheng Cao
Affiliation:
caots@fmmu.edu.cn, Fourth Military Medical University, Ultrasonographic Diagnostics, Xi'an, Shaanxi, China
Get access

Abstract

Effective indenter concept was introduced by Pharr and Bolshakov to explain nanoindentation unloading curves. This paper shows that the contact stiffness under a uniform pressure distribution is 57% higher than what is given by the fundamental relation. This is due to the fact that there is no physical indenter that gives a uniform pressure distribution during elastic contact, and the fundamental relation used in nanoindentation data analysis does not apply.

Keywords

elastic propertiesthin filmnano-indentation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1224: Symposia FF/GG – Mechanical Behavior at Small Scales — Experiments and Modeling , 2009 , 1224-FF05-36
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Fischer-Cripps, A.C., Nanoindentation, (Springer-Verlag, 2004) New York, New York, USA.Google Scholar
2 Borodich, F.M. and Keer, L.M., Int. J. Solids Strut. 41, 2479 (2004).Google Scholar
3 Fu, G. and Cao, L., Mater. Lett. 62, 3063 (2008).Google Scholar
4 Pharr, G.M. and Bolshakov, A., J. Mater. Res. 17, 2660 (2002).Google Scholar
5 Johnson, K.L., Contact Mechanics, (Cambridge University Press, 1985) pp. 107–108.Google Scholar
6 Jaeger, J., New Solutions in Contact Mechanics, (WIT Press, 2005), pp. 99.Google Scholar