Interior warping measurement by holographic interferometry

Abstract

interferometry is used to obtain the interior displacement (warping) at different planes of a prismatic shaft of square cross-section in torsion. It can be shown that the fixed-end displacement is not equal to zero. 0 A' Fig. I. Schematic for interior displacement measurement of a shaft square cross-section in torsion. Bbeamsplitter, Hhologram, Llaser and expander, M -mirror, 0 -observer, Rreference wave, RSreflection-sheet