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Further analysis of indentation loading curves: Effects of tip rounding on mechanical property measurements

Published online by Cambridge University Press:  31 January 2011

Yang-Tse Cheng  and
Che-Min Cheng
Yang-Tse Cheng
Affiliation:
Physics and Physical Chemistry Department, General Motors Global Research and Development Operations, Warren, Michigan 48090
Che-Min Cheng
Affiliation:
Laboratory for Non-linear Mechanics of Continuous Media, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China
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Abstract

The effects of indenter tip rounding on the shape of indentation loading curves have been analyzed using dimensional and finite element analysis for conical indentation in elastic-perfectly plastic solids. A method for obtaining mechanical properties from indentation loading curves is then proposed. The validity of this method is examined using finite element analysis. Finally, the method is used to determine the yield strength of several materials for which the indentation loading curves are available in the literature.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 4 , April 1998 , pp. 1059 - 1064
Copyright
Copyright © Materials Research Society 1998

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