Strain-optic law for a certain class of birefringent composites - A strain-optic law for a class of birefringent composites dominated by matrix optical characteristics is developed and evaluated experimentally

R. B. Pipes, Joseph Lawrence Rose

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Abstract

A strain-optic law for a certain class of birefringent fiber-reinforced composite materials is developed. The strain-optic law requires both mechanical and optical characterization of the material. Previous investigations have hypothesized the existence of three independent optical properties for the anisotropic birefringent material. The strain-optic relation developed in this study, however, requires only a single strain-optic coefficient, coupled with four independent mechanical material properties, for prediction of the optical response of a birefringent anisotropic material. Experimental results are presented which show good agreement with the developed strain-optic relation. Finally, the isoclinic parameter is investigated and preliminary evidence is presented which indicates a correspondence between principal-strain direction and optical isoclinic angle.

Original languageEnglish (US)
Pages (from-to)355-360
Number of pages6
JournalExperimental Mechanics
Volume14
Issue number9
DOIs
StatePublished - Sep 1 1974

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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