Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Elastic-Plastic Deformation and 3-D FEA for the Berkovich Nano-Indentation

베르코비치 나노인덴테이션에 대한 3차원 유한요소해석과 탄소성 변형에 관한 연구

  • 양현윤 (경남대학교 대학원 기계설계학과) ;
  • 김지수 (경남대학교 대학원 재료공학과) ;
  • 윤존도 (경남대학교 신소재공학부) ;
  • 조상봉 (경남대학교 기계자동화공학부)
  • Published : 2005.10.01
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Abstract

The Berkovich nano-indentation is an indentation test method analyzing mechanical properties of materials such as hardness and elastic modulus. The length scale of the penetration is measured in nanometers. Therefore, this method becomes widely useful for analyzing the mechanical property of thin film which can not be measured before. In this paper, comparing two results of the load-displacement curve obtained by the Berkovich nano-indentation and the 3-D finite element analysis, it was confirmed that the 3-D finite element analysis is useful. The phenomenon of pile-up and sink-in due to material properties was discussed by the finite element analysis.

Keywords

References

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