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Information × Registration Number 0225U000702, (0119U103374) , R & D reports Title Numerical modeling of the dynamics and statics of layered shell elements of complex geometry as applied to objects of the atomic and space industries. popup.stage_title Аналіз результатів і розробка рекомендацій щодо створення інженерних методів розрахунків елементів конструкцій при статичних і динамічних навантаженнях Head Luhovyi Petro Z., Registration Date 16-01-2025 Organization S.P.Timoshenko Institute of Mechanics popup.description1 The study of the dynamics and statics of layered shell elements as applied to the objects of the atomic and space industries, namely: -heat transfer cylindrical tubes in the event of an arogen generator accident; -reinforced concrete protective shells of reactors of nuclear power plants; -three-layer conical and spherical shells for calculating fairings and adapters. popup.description2  The influence of distributed and local axisymmetric impulse loads on three-layer cylindrical shell elements of missile bodies has been studied. Local axisymmetric impulse external loads, which are applied along the guide of the cylindrical shell, are an imitation of the explosion of an elongated shaped charge of instantaneous action. The studies demonstrate a significant influence of the nature of dynamic loads on transient processes in three-layer cylindrical elements. When analyzing the dynamic characteristics of conical shells of variable thickness on an elastic Pasternak base under the action of a non-stationary load, the model of the theory of Timoshenko shells was used. The influence of geometric dimensions, the angle of taper and elastic media on the natural frequencies and other dynamic characteristics of a conical shell of variable thickness under the action of an impulse load was analyzed using specific examples. Numerical results of the nature of the dynamic behavior of an asymmetric three-layer elastic spherical structure using the finite element method have been obtained. The influence of the physical and mechanical parameters of asymmetric layers of spherical shells on the stress-strain state under axisymmetric internal impulse loading was investigated. Product Description popup.authors Koliadiuk Andrii S. Kotenko Kostiantyn E. Luhovyi Petro Z. Meish Yuliia A. Olkhovskyi Anton S. Orlenko Serhii P. Podilchuk Inna Yu. Prokopenko Nina Ya. Skosarenko Yurii V. popup.nrat_date 2025-01-16 Close