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Identification of the elastic–plastic constitutive model for measuring mechanical properties of metals by instrumented spherical indentation test

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Abstract

Several methods for determination of elastic–plastic parameters by instrumented spherical indentation tests have been presented in the past few years. Each method was established according to a specific constitutive model. Identification of the constitutive models of new materials has become an indispensable step in order to choose an appropriate indentation method to extract the elastic–plastic parameters. In the present work, the half depth energy accumulation rate and Meyer’s index were related to the elastic–plastic constitutive models via qualitative and numerical analyses. A method for identification of the elastic–plastic constitutive models by instrumented spherical indentation test was proposed.

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Acknowledgments

Authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant numbers 11672356, 11272318, 11402233, and 11302231).

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Authors and Affiliations

  1. Institute of Micro/Nanomechanical Testing Technology and Application, College of Mechanical Engineering, Zhejiang University of Technology, No. 18 Chaowang Road, Hangzhou, 310014, China

    Taihua Zhang

  2. State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China

    Chang Yu

  3. Institute of Micro/Nanomechanical Testing Technology and Application, College of Mechanical Engineering, Zhejiang University of Technology, No. 18 Chaowang Road, Hangzhou, 310014, China

    Guangjian Peng

  4. State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China

    Yihui Feng

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  1. Taihua Zhang
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  2. Chang Yu
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Zhang, T., Yu, C., Peng, G. et al. Identification of the elastic–plastic constitutive model for measuring mechanical properties of metals by instrumented spherical indentation test. MRS Communications 7, 221–228 (2017). https://doi.org/10.1557/mrc.2017.28

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  • DOI: https://doi.org/10.1557/mrc.2017.28

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