Finite Element Anlaysis of Nanoindentation Process and its Experimental Verification

나노 인덴테이션 공정의 유한요소해석 및 실험적 검증

  • 이정우 (부산대학교 정밀기계공학과) ;
  • 윤성원 (부산대학교 정밀기계공학과) ;
  • 강충길 (부산대학교 기계공학부, 정밀정형 및 금형가공연구소)
  • Published : 2003.05.01

Abstract

In this study, to achieve the optimal conditions for mechanical hyper-fine pattern fabrication process, deformation behavior of the materials during indentation was studied with numerical method by ABAQUS S/W. Brittle materials (Si, Pyrex glass) were used as specimens, and forming conditions to reduce the elastic restoration and pile-up was proposed. The indenter was modeled a rigid surface. Minimum mesh sizes of specimens are 1-10nm Comparison between the experimental data and numerical result demonstrated that the finite element approach is capable of reproducing the loading-unloading behavior of a nanoindentation test. The result of the investigation will be applied to the fabrication of the hyper-fine pattern.

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