Optical EngineeringSimple holographic interferometric method of investigating the Poisson coefficient and elasticity moduli
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A simple method to determine the moduli of elasticity E and G and the Poisson coefficient v of a linear elastic isotropic structural material on the basis of a cylindrical beam, from a single double-exposure holographic interferogram, is described. The method is applicable to different types of materials. The measurement of a steel beam is presented as an example.