Ma, L.
, Zhou, J.
, Lau, A.
, Low, S.
and deWit, R.
(2002),
Self-Similarity Simplification Approaches for the Modeling and Analysis of Rockwell Hardness Indention, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed September 8, 2024)
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Self-Similarity Simplification Approaches for the Modeling and Analysis of Rockwell Hardness Indention
Published
Author(s)
, J Zhou, A Lau, ,
Abstract
Indentation process of the Rockwell diamond indenter pressing into inelastic material is studies for the analysis, simulation and prediction of Rockwell hardness tests. The geometrical characteristics of the cone-spherical-shaped Rockwell indenter are discussed and fit into a general function in a self-similarity way. The complicated moving boundary problem in Rockwell hardness tests is simplified to an intermediate station one for a flat die indenter by using principles of similarity and cumulative superposition approaches. This method is applied to both strain hardening and strain rate dependent materials. The effects of different material properties and indenter geometry on the indentation depth are discussed. The finite element method is used to simulate the indenter geometric parameter effects on the indentation process.Citation
Journal of Research (NIST JRES) -
Volume
107 No. 5
NIST Pub Series
Pub Type
NIST Pubs
Keywords
analytical modeling, cumulative superposition, diamond indenter, FEA, finite element analysis, indentation, Rockwell hardness, self-similarity
Citation
Issues
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Created September 1, 2002, Updated February 19, 2017