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TsAGI Science Journal

Publication de 6  numéros par an

ISSN Imprimer: 1948-2590

ISSN En ligne: 1948-2604

NONCONTACT MEASUREMENTS OF WING BOX DEFORMATION DURING STRENGTH TESTS BY VIDEOGRAMMETRY METHOD

Volume 48, Numéro 8, 2017, pp. 751-760
DOI: 10.1615/TsAGISciJ.2018026351
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RÉSUMÉ

Deformation measurements of a wing box prototype of medium-range civil aircraft were performed by the noncontact optical videogrammetry method. The prototype was made of a polymer composite material. Investigations were carried out during residual strength tests of the wing box. Loading was applied with a step of 10% of ultimate load in flight mode until failure. Distributed deformation fields of bending and twisting of the wing box were obtained for each loading step. The measurement error of normal deviations of surface points did not exceed 0.8 mm. It was shown that maximum bending of the wing tip section reached 290 mm just before destruction.

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