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http://dx.doi.org/10.3795/KSME-A.2007.31.4.461

Enhanced Spherical Indentation Techniques for Property Evaluation  

Lee, Hyung-Yil (서강대학교 기계공학과)
Lee, Jin-Haeng (서강대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.31, no.4, 2007 , pp. 461-471 More about this Journal
Abstract
In this work, indentation theory of Lee $et al.^{(1)}$ for 6% indentation of indenter diameter is extended to an indentation theory for 20% indentation. For shallow indentation, the effect of friction on load-depth curve is negligible, but different materials can show nearly identical load-depth curves. On the basis of this observation, a new numerical approach to deep indentation techniques is proposed by examining the finite element solutions. With this new approach, from the load-depth curve, we obtain stress-strain curve and the values of Young's modulus, yield strength and strain-hardening exponent with an average error of less than 3%.
Keywords
Indentation; FEA; Material Property;
Citations & Related Records

Times Cited By SCOPUS : 2
연도 인용수 순위
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