On radial crack and half-penny crack induced by Vickers indentation

Yuye TANG, Akio YONEZU, Nagahisa OGASAWARA, Norimasa CHIBA, Xi CHEN*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

42 Citations (Scopus)

Abstract

Based on the stress fields formed upon Vickers indentation, the radial crack and half-penny crack systems are analysed separately using finite-element analyses. The crack length is correlated with the stress intensity factor (SIF) at the crack front and material elastoplastic properties via explicit relationships, from which a reverse analysis can be carried out such that the critical SIF (fracture toughness) can be readily derived once the crack length is measured. The proposed technique is validated by comparing with experimental data in the literature as well as parallel experiments of Vickers indentation-induced cracking. © 2008 The Royal Society.
Original languageEnglish
Pages (from-to)2967-2984
Number of pages18
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume464
Issue number2099
Early online date17 Jun 2008
DOIs
Publication statusPublished - 8 Nov 2008
Externally publishedYes

Bibliographical note

The work of A.Y. was supported in part by Grant-in-Aid for Young Scientist of (B) (no. 19760075) of the Ministry of Education, Culture, Sports, Science and Technology, Japan, and Research Grant (General research for Electricity & Energy) of TEPCO research foundation. The work of X.C. was supported in part by the National Science Foundation CMMI-0407743 and CMMI-CAREER0643726.

Keywords

  • Fracture
  • Indentation
  • Numerical analysis

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