Search academic texts

Information × Registration Number 0214U002856, 0111U001103 , R & D reports Title Mathematical modeling of plastic forming on the cylindrical blank free lateral surface at axisymmetric compression popup.stage_title Head Mykhalevych Volodymyr, Registration Date 30-01-2014 Organization Vinnitsa National Technical University popup.description2 Object of research - process axisymmetric compression of cylindrical blanks with different intensity barrel distortion. The work purpose - calculated algorithm design and information technologies of definition of the is intense-deformed condition and ultimate plastic ultimate strain of materials on a free lateral surface of cylindrical blanks at axisymmetric compression with different intensity barrel distortion. Methods of researches: theoretical (analytical geometry, the mathematical analysis during creation and research of mathematical models), experimentally-analytical (the device of mathematical statistics for processing of experimental data). The technique of construction of dependence between components of strains on a free lateral surface of the cylindrical sample during end compression is improved. Dependence between axial and hoop strains in the parametrical form is presented. The theorems of necessary and sufficient conditions of bump function of damageability and existence of the solution of the primary problem of the linear theory of damages accumulation. Set of expressions for the analytical description of strains trajectory during end compression is received. Algorithms of definition of boundary strains on a free lateral area of cylindrical billets are offered. The generalised approximation of dependences between strains components of the cylindrical billets lateral area during end compression is developed. The technique of deformation trajectory determination and ultimate strain of the free surface of samples prediction by 3-4 points of the initial segment of the experimental data is developed. Product Description popup.authors Добранюк Юрій Володимирович Коцюбівська Катерина Іванівна Краєвський Володимир Олександрович Михалевич Володимир Маркусович Михалевич Олексій Володимирович Трач Євген Анатолієвич popup.nrat_date 2020-04-02 Close