Hardness obtained from conical indentations with various cone angles

Yang Tse Cheng, Zhiyong Li

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


The relationship between hardness and cone angle of conical indenters was studied using finite element analysis for elastic-plastic solids with work-hardening. Comparisons were made between the present simulation results, slip line theory, and experimental results. Tabor's concept of representative strain based on indentation experiments in metals (The Hardness of Metals, Oxford, 1951) was shown to be applicable to a wide range of materials. The relative size of plastic zone with respect to the contact radius was found to influence the variation of hardness with indenter cone angle. The method proposed by Atkins and Tabor [J. Mech. Phys. Solids, 13, 149 (1965)] for constructing stress-strain curves using representative strains was also examined, and the conditions under which the method is valid were obtained.

Original languageEnglish
Pages (from-to)2830-2835
Number of pages6
JournalJournal of Materials Research
Issue number12
StatePublished - Dec 2000

Bibliographical note

Copyright 2017 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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