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.
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References
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Pipes, R.B., Rose, J.L. Strain-optic law for a certain class of birefringent composites. Experimental Mechanics 14, 355–360 (1974). https://doi.org/10.1007/BF02323561
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DOI: https://doi.org/10.1007/BF02323561