Instantaneous phase-stepping photoelasticity for the study of crack growth behaviour in a quenched thin glass plate

S. Yoneyama, K. Sakaue, H. Kikuta, M. Takashi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A new approach to simultaneous acquisition of phase-stepped photoelastic fringes using a CCD camera equipped with a pixelated micro-retarder array is described for the investigation of time-variant problems. This method 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 difference around a growing crack tip are obtained by the proposed method. 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. The results show that the proposed instantaneous phase-stepping technique is effective for the study of the crack growth behaviour in a thin glass plate.

Original languageEnglish
Article number017
Pages (from-to)3309-3316
Number of pages8
JournalMeasurement Science and Technology
Volume17
Issue number12
DOIs
Publication statusPublished - 2006 Dec 1

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Keywords

  • Fracture
  • Instantaneous phase-stepping method
  • Micro-retarder array
  • Mixed-mode
  • Photoelasticity
  • Quasi-static crack
  • Quenched glass
  • Stress intensity factor
  • T-stress
  • Thermal stress

ASJC Scopus subject areas

  • Instrumentation
  • Engineering (miscellaneous)
  • Applied Mathematics

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