stress-optic law

stress-optic law

[′stres ′äp·tik ‚lȯ]
(optics)
In a transparent, isotropic plate subjected to a biaxial stress field, the relative retardation Rt between the two components produced by temporary double refraction is equal to Ct (p-q), which in turn is equal to n λ; C is the stress-optic coefficient, t the plate thickness, p and q the principal stresses, n the number of fringes which have passed the point during application of the load, and λ the wavelength of the light.
References in periodicals archive ?
The theories of rubber birefringence and rubber elasticity have previously been combined only for the case of small strains (Gaussian chains) fielding the familiar stress-optic law
Equations 12 and 15 may be combined to give the stress-optic law for the current theory
The stress-optic law may be rearranged and the constants combined so that the difference in principal stresses may be written as a function of birefringence and stretch
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