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http://dx.doi.org/10.3795/KSME-A.2004.28.3.304

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

Koo, Jae-Mean (성균관대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.28, no.3, 2004 , pp. 304-310 More about this Journal
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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