Abstract
This paper describes an optical method based on deflectometry to measure the slope fields on the whole surface of a plate specimen under bending testing. The phase-stepping procedure used provides an excellent sensitivity on the slope measurement, which was measured and found to be better than 2.5×10−5 rad. Experimental results are presented along with finite element simulations.
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Surrel, Y., Fournier, N., Grédiac, M. et al. Phase-stepped deflectometry applied to shape measurement of bent plates. Experimental Mechanics 39, 66–70 (1999). https://doi.org/10.1007/BF02329303
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DOI: https://doi.org/10.1007/BF02329303