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Information × Registration Number 0217U000215, 0112U002776 , R & D reports Title Develop a methodology to determine the stress-strain state and diagnosing layered composites under static and dynamic loads by means of speckle-metrology popup.stage_title Head Ivanytskij Yaroslav, Registration Date 31-01-2017 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 Theoretical and experimental methods for determining the mechanical stiffness of connection "composite-metal" with the use of DIC technique for imaging surface samples during the jam is developed. The results of experiments rigidity connection "composite-metal" for the layered carbon fiber estimation done. Based on the results of the experiments found optimal thickness of samples with carbon fiber type ЕЛУР -008П/БН for maximum resistance to creasing. Algorithm forming a series of speckle interferohram for combined optical-digital system based on DIC and ECI are developed. The layout of the experimental setup and its electronic assemblies manufactured. Approbation layout settings for recording images speckle fields deformations of the surface layers of the studied composites made by stretching. The experimental method of determining normal to the deformable surface LCM movements in the vicinity of holes, cuts, cracks and of junctions is developed. The technique using the methods of ECI and DIC to measure 3D displacements are built. Based on this method a method for detecting defects in samples of layered carbon fiber type ELUR for maximum equilibrium in the acoustic sensing is developed. Numerical simulation of connection "composite-metal" for the tensile load carried and assessment resources (number of cycles to fracture) bolting is appreciated. Tasks resolved in the elastic setting. For the first time the complex resonant frequencies depending on the geometrical parameters, physical and mechanical characteristics of the impedance by considering setting conditions of formation of a defect is built. The results make it possible to optimize the parameters of transmitter-receiver units modern diagnostics equipment. Product Description popup.authors Бойко Василь Миколайович Войтко Мирон Васильович Вороняк Тарас Іванович Гвоздюк Микола Марянович Голинський Іван Стахович Дрималик Андрій Романович Кметь Аркадій Борисович Кулинич Ярослав Петрович Куриляк Дозислав Богданович Куць Олександр Григорович Личак Олег Васильович Максименко Олександр Парфенович Муравський Леонід Ігорович Назарчук Зіновій Теодорович Сахарук Олександр Миколайович Франкевич Людмила Франківна Чепіль Ольга Ярославівна popup.nrat_date 2020-04-02 Close