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Information × Registration Number 0212U000526, 0107U004074 , R & D reports Title Development of the theory and tools for thin-sheet composite material destruction evalution according to local deformation fields by speckle metrology techniques popup.stage_title Head Ivanytskyi Yaroslav Lavrentievich, Muravsky Leonid Igorovich, Registration Date 21-02-2012 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The calculation model for determining the limiti-equilibrium state of thin-walled composite plates with a notch was formulated on the base of deformation energy and material fracture balance. The experimental method was developed and fracture resistance of composite materials was evaluated by the 3-D dispalcement fields determined by the method of digital speckl-correlation with an optimized fractional power filter. New approach to detecting internal defects in lamellar composite materials applied in aviation by the structure of normal deformation fields on the region of the investigated surface using the electron speckl-interferometry methods. The dependence between parameters k ( a ratio of specific density to the specific density of bands in the plastic deformation zone) and the values of transversal and longitudinal deformations was established. It was shown that lamination formation in a 12-layer carbon-plastic composite takes place at k=2. Product Description popup.authors Болейчук Василь Михайлович Вороняк Тарас Іванович Гвоздюк Микола Мар'янович Гембара Оксана Володимирівна Голинський Іван Стахович Гурська Руслана Василівна Дрималик Андрій Романович Квашневський Юрій Ілліч Кметь Аркадій Борисович Куць Олександр Григорович Максименко Олександр Парфенович Половинко Тарас Ігорович Сахарук Олександр Миколайович Черниш Марія Степанівна Штаюра Степан Теодорович popup.nrat_date 2020-04-02 Close