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Information × Registration Number 0214U007128, 0112U000883 , R & D reports Title To explore the influence of parameters and methods of pulse electrohydraulic deformation on plastic properties of sheet high-strength steels and develop the efficient technological methods and schemes for their cold forming popup.stage_title Head Kosenkov Viktor Mykhaylovych, Registration Date 22-04-2014 Organization Institute of Pulse Research and Engineering popup.description2 The study focuses on the physical processes of energy transformation, plastic deformation, and shape forming of sheet high-strength steels during the pulse electrohydraulic stressing. Methods of the study: mathematical modeling, experimental research of physical processes of energy transformation, plastic deformation, and shape forming of sheet high-strength steels during the pulse electrohydraulic stressing. The scheme of the high-speed tension of samples of high-strength steels with use of the Hopkinson-Kolsky installation is developed to explore their mechanical and energy performances. The method of determination of energy density obtained by high-strength steels during deformation by the pressure waves generated by the electrical discharges in water, and also the method of determination of the efficiency ratio of the deformation process are developed. The efficiency rate is correlation of the energy released for the deformation of the materials and the energy stored in the capacitor bank, and also the pressure waves in the end of the plastic deformation. The 1.6-fold growth of the electrical efficiency rate of the discharge leads to the 2-4-fold growth of the energy density of plastic deformation of plates and the pressure. Influence of geometrical performances of the discharge chamber and the sizes of a deformable material on the efficiency rate of the process is determined. The increase of the distance from an axis of electrodes to a membrane from 180 to 273 mm due to elongation of the equipment channel leads to the 1.4-fold increase of the efficiency rate of the deformation process. The pressure on the membrane surface in the end of their plastic deformation increases from 1.2 to 1.4 times. Product Description popup.authors Аврамець Д.Р. Бичков В.М. Коломийцева Л.П. Кузьменко В.Г. Сокол С.В. Солов'ян Н.І. Старков Н.В. Стрелковська Л.І. Тищенко Ф.М. popup.nrat_date 2020-04-02 Close