Identification of Young's Modulus from Indentation Testing and Inverse Analysis

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著者

    • PROU Joris
    • Tokyo Institute of Technology, Department of Mechanical Sciences and Engineering
    • KISHIMOTO Kikuo
    • Tokyo Institute of Technology, Department of Mechanical Sciences and Engineering

抄録

In this study, a numerical method for the identification of the Young's modulus of linear elastic coated materials from continuous indentation test is first presented. The identification is based on an inverse analysis where the minimization of a cost functional is performed by a gradient descent algorithm. The main result is the computation of cost function gradient by using a direct differentiation technique, resulting in a time-saving method compared to the widely used finite difference method. The validity and illustration of this approach is shown through several numerical examples. The second part of this article is dedicated to the identification of elasto-plastic thin films Young's modulus. A new method is proposed, where the inverse analysis relies only on finite element computations for elastic materials.

収録刊行物

  • Journal of Solid Mechanics and Materials Engineering

    Journal of Solid Mechanics and Materials Engineering 4(6), 781-795, 2010

    一般社団法人 日本機械学会

各種コード

  • NII論文ID(NAID)
    130000302040
  • 本文言語コード
    ENG
  • データ提供元
    J-STAGE 
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