Abstract
The scheme of elastic stress visualization in transparent materials (Plexiglas) by a change in optical path is proposed. The optical path gradient was measured using the correlation method. A model experiment was performed at various configurations of transverse static loads on a Plexiglas beam. It was shown that the displacement field of the background structure corresponds to stress diagram at a given beam load scheme. For the process of point heating of quartz glass, the correlation method is compared to the method based on the photoelasticity effect.
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Original Russian Text © A.V. Kraiskii, E.M. Kudryavtsev, T.V. Mironova, T.T. Sultanov, 2012, published in Kratkie Soobshcheniya po Fizike, 2012, Vol. 39, No. 9, pp. 18–24.
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Kraiskii, A.V., Kudryavtsev, E.M., Mironova, T.V. et al. Application of the correlation method to analyze deformations in transparent materials. Bull. Lebedev Phys. Inst. 39, 257–260 (2012). https://doi.org/10.3103/S1068335612090035
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DOI: https://doi.org/10.3103/S1068335612090035