Digital determination of photoelastic birefringence using two wavelengths

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A new approach for digital determination of photoelastic birefringence is proposed. The relationships between the intensity values and the fringe orders of two wavelengths are derived. This scheme allows for automatic determination of fringe orders of a full-field photoelastic fringe pattern without using zero-order fringes in the fringe pattern. The usefulness of this method was demonstrated on two experimental fringe patterns with different wavelengths.

Original languageEnglish
Pages (from-to)232-236
Number of pages5
JournalExperimental Mechanics
Issue number3
Publication statusPublished - 1997 Sep

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering


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