Abstract
An original method of determining residual stresses by using probing holes and measuring the difference in the holographic interference fringe orders for two sets of pairs of points taken on the principal strain axes is suggested. The optical scheme of the interferometer is based on the use of reflection holograms. The principal residual strains are found by solving an overdetermined set of linear equations. The effect of rigid displacement on the fringe pattern is taken into account. The method is experimentally verified by measuring elastic stresses in uniaxially and biaxially strained specimens.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 73, No. 11, 2003, pp. 106–110.
Original Russian Text Copyright © 2003 by Odintsev, Shchepinov, Shchikanov.
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Odintsev, I.N., Shchepinov, V.P. & Shchikanov, A.Y. Holographic interferometry for measuring residual stresses by using probing holes. Tech. Phys. 48, 1464–1467 (2003). https://doi.org/10.1134/1.1626781
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DOI: https://doi.org/10.1134/1.1626781