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Information × Registration Number 0211U001840, 0108U000231 , R & D reports Title Development of the theory and methods of numerical modelling of processes of nonlinear deformation and destruction of thin-walled and solid structure popup.stage_title Head Bazhenov Viktor, Registration Date 07-02-2011 Organization Scientific - research complex of the Kyiv National University of Construction & Architecture popup.description2 The method is justified and the effective algorithm of simulation of processes of nonlinear deformation, loss of a stability and supercritical behaviour of thin elastic shells of an inhomogeneous structure under a combined operation temperature and force loads is developed; the technique of a correcting of parameters of algorithm is developed, that has allowed to pass automate the diagram "load-displacement" irrespective of its form and complexity, to define at the diagram singular points (ramifying and critical), to take into account associations thermomechanic properties of a material from temperature; the development of a technique and algorithms of a research of a dynamic stability of thin-walled elastic systems under stochastic loads of a different type is carried out; the method of the definition of the dynamic electroelastic stress-strain state of thin-walled structure is developed; the new approaches to modal analysis of shells with regular and irregular structure are proposed; the reduced models are created by the passage to new generalized coordinates which are selected among a generalized coordinates of an initial discrete model; the approach for theoretic simulation of the processes of propagation of nonstationary discontinuous waves in heterogeneous and composite anisotropic elastic media is elaborated; оn the basis of semianalytical finite element method the approaches for modelling of continual fracture process and crack propagation under high-cyclic loading condition has been elaborated for solid of revolution with variable crosssection area. Product Description popup.authors Іванченко Григорій Михайлович Андрієвський Віктор Петрович Гречух Наталія Анатоліївна Григор'єв Сергій Олексійович Гуляр Олександр Іванович Гусар Павло Петрович Дехтярюк Євген Семенович Калашніков Олександр Борисович Кривенко Ольга Петрівна Легостаєв Анатолій Дмитрович Мицюк Сергій Вікиторович Немчинова Любов Юріївна Пискунов Сергій Олегович Семенов Володимир Максимович Соловей Микола Олександрович Шкриль Олексій Олександрович popup.nrat_date 2020-04-02 Close