Stress field evaluation for a propagating crack in a thin glass plate

Satoru Yoneyama, Kenichi Sakaue, Hisao Kikuta, Masahisa Takashi

Research output: Contribution to journalArticle

Abstract

An instantaneous phase-stepping technique using a CCD camera equipped with a pixelated micro-retarder array is applied to the study of quasi-static crack growth in a quenched thin glass plate. The distributions of the principal direction as well as the principal stress diference around a growing crack tip are obtained by instantaneous phase-stepping photoelasticity. Then, not only the mixed-mode stress intensity factors but also the T-stress are evaluated from the distribution of the principal stress difference, and they are validated using the reconstructed phase maps. By applying the proposed method to the sucsessive images, the time-variations of the fracture mechanics parameters are evaluated quantitatively. Results show that the proposed instantaneous phase-stepping technique is effective for the study of the crack growth behavior in a thin glass plate.

Original languageEnglish
Pages (from-to)716-723
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume73
Issue number6
Publication statusPublished - 2007 Jun
Externally publishedYes

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Keywords

  • Experimental mechanics
  • Fracture mechanics
  • Instantaneous phase-stepping method
  • Mixed-mode
  • Photoelasticity
  • Quenched glass
  • Stress intensity factor
  • T-stress
  • Thermal stress

ASJC Scopus subject areas

  • Mechanical Engineering

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