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Information × Registration Number 0214U002860, 0112U001366 , R & D reports Title Models of composite and solid materials as a basis for strength and plasticity resource prediction and their application for the development of resource-saving technologies popup.stage_title Head Ogorodnikov Vitaliy Antonovich, Registration Date 30-01-2014 Organization Vinnitsa National Technical University popup.description2 Object of the research - models of composite, solid construction and engineering materials that are used to predict the strength and plasticity resource in the problems of durability, fatigue and strength resistance evaluation in various branches of engineering. Goal of the research - development of the methods for forming the models of composite, solid construction and engineering materials in order to evaluate their limit states during local deformation, operation, at the design stage, while manufacturing constructional parts and components as well as their consideration in calculation of the components for strength, durability and crack-resistance in the process of surface plastic deformation. Theoretical basis and procedure for testing sheet composite and solid materials in the conditions of tension, compression and shear as well as in the conditions of biaxial stress state have been elaborated. A complex phenomenological approach is proposed. The approach covers the elaborated methods for determining the parameters of metal strengthening curves and plasticity diagrams on the basis of simple tests and calculation procedures. A criterion of the plastic loss of stability of the shell, taking into account its curvature, has been developed. A procedure for building flow curves and determining mechanical characteristics of composite and solid materials has been elaborated. The solution of the boundary problem of the plasticity theory for the roller indentation has been obtained by the finite element method. It was determined that due to the non-monotony of plastic deformation during surface plastic deformation the metal surface layer acquires high plasticity in combination with high strength. Besides, considerable changes in its other physical-mechanical properties also occur. A mechatronic hydraulic drive circuit on the basis of a free-programmable controller has been developed as well as solenoid-operated pressure regulator design. Main parameters of the regulator have been calculated. Recommendations on the choice of a free-programmable controller are presented. Product Description popup.authors Архіпова Тетяна Федорівна Бальзан Марина Володимирівна Бурєнніков Юрій Анатолійович Грушко Олександр Володимирович Ковальчук Вадим Анатолійович Козлова Галина Сергіївна Коцюбівська Катерина Іванівна Лозовський Сергій Миколайович Молодецька Тетяна Ігорівна Огородніков Віталій Антонович Піонткевич Олег Володимирович Перлов Віктор Євгенійович Петров Олександр Васильович Побережний Михайло Іванович Поздняков Михайло Васильович Поліхун Олександр Миколайович Репінський Сергій Володимирович Сивак Іван Онуфрійович Яблонська Софія Зинов'ївна popup.nrat_date 2020-04-02 Close