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An Indentation Method Based on FEA for Equi-Biaxial Residual Stress Evaluation

유한요소해에 기초한 양축등가 잔류응력 평가 압입이론

  • 이진행 (서강대학교 대학원 기계공학과) ;
  • 이형일 (서강대학교 기계공학과)
  • Published : 2006.01.01

Abstract

An indentation method to determine equi-biaxial residual stress is proposed by examining the data from the incremental plasticity theory based finite element analyses. We first select optimal normalized-parameters, which are minimally affected by indentation depth and material properties. Numerical linear regressions of obtained data exhibit that maximum load and contact area of imprint are the main parameters measuring the residual stress. The proposed indentation approach provides a substantial enhancement in accuracy compared with the prior methods.

Keywords

Indenter;Residual Stress;FEM

References

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Cited by

  1. A Dual Triangular Pyramidal Indentation Technique Based on FEA Solutions for Material Property Evaluation vol.36, pp.1, 2012, https://doi.org/10.3795/KSME-A.2012.36.1.017