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

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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.

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Authors and Affiliations

  1. Physics and Physical Chemistry Department, General Motors Global Research and Development Operations, Warren, Michigan, 48090, USA

    Yang-Tse Cheng

  2. Laboratory for Non-linear Mechanics of Continuous Media, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100080, China

    Che-Min Cheng

Authors
  1. Yang-Tse Cheng
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  2. Che-Min Cheng
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Correspondence to Yang-Tse Cheng.

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Cheng, YT., Cheng, CM. Further analysis of indentation loading curves: Effects of tip rounding on mechanical property measurements. Journal of Materials Research 13, 1059–1064 (1998). https://doi.org/10.1557/JMR.1998.0147

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  • DOI: https://doi.org/10.1557/JMR.1998.0147

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