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Cracking Threshold Analysis for Nanoindetation Using 3D Finite-Element Method

3차원 유한요소법을 이용한 나노압입에 의한 균열발생 하한계 해석

  • 구재민 (성균관대학교 기계공학부)
  • Published : 2004.03.01

Abstract

In this paper, cracking threshold for nanoindentation is analyzed by using 3D finited-element method. The analysis by maximum principal stress criterion can obtain the reliable results for determining to crack initiation location and load. Because the ratio of maximum principal stress to indentation depth for Victors indentation is smaller than flat-plane-column indentation and cracking for Victors indentation occurs from the inner part of specimen difficult to measure crack length, the nanoindentation facture test for flat-plane-column indentation is more effective.

Keywords

Nanoindentation;Cracking Threshold;Fracture;Maximum Principal Stress;Indentation Depth

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