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Information × Registration Number 0224U002731, 0123U100908 , R & D reports Title Modeling and development of methods for calculating the rational functioning of constructional elements and systems of various purposes under complex loads popup.stage_title Head Andriichuk Mykhailo I., Доктор технічних наукKushnir Roman M., д.ф.-м.н. Registration Date 26-02-2024 Organization Institute of Applied Problems of Mechanics and Mathematics named after Ya. S. Pidstryhach of the National Academy of Sciences of Ukraine popup.description2  At the first stage, the following results were obtained: 1. A mathematical model of the behavior of closed large-sized thin-walled structures with complex geometry under the action of internal uniformly distributed and hydraulic pressures was built. 2. By using the method of finite elements, an appropriate support for the calculation methodology of such structures has been developed as the basis of their computer models. 3. The methodology for determining the actual destructive loads of the specified structures, taking into account the data of non-destructive experimental tests, was developed. 4. The strength of the shell structures of the complex shape of the developed domestic rocket and rocket-space technology was studied and the destructive loads were determined in accordance with the documents issued by the State Enterprise "Design Bureau "South" named after M.K. Yangel". Recommendations on the use of the specified methodology by interested institutions have been developed. 5. An effective method of studying the thermomechanical behavior of bodies with multi-layer gradient coatings has been developed using a mathematical model based on the modeling of their influence by generalized boundary conditions. 6. The optimal criteria for the creation of functional materials with the aim of ensuring the necessary performance indicators of elements of modern technology, devices and structures have been established. 7. Recommendations have been developed for managing the manufacturing processes of products with properties necessary for operation. 8. Recommendations for the creation of new heat-shielding materials and composite products with adjustable thermal conductivity, thermal deformability and thermal strength, as well as optimal modes of operation of products under extreme thermal and mechanical loads have been developed. 9. The conditions of asymptotic stability of uniform rotation of an elastic solid body were obtained. Product Description popup.authors Yevhenieva Yevheniia O. Ivasko Roman O. Andriichuk Roman М. Bardyn Tetiana P. Vankevych Petro P. Demydiuk Myroslav V. Drobenko Bohdan D. Zhbadynskyi Ihor Ya. Zuiev Aleksandr L. Kalosha Yuliia I. Кононов Yurii N. Kunets Yaroslav I. Lopukh Nazarii B. Malachivskyi Petro S. Marchuk Mykhaylo V. Matus Valerii V. Mykhaskiv Viktor V. Pakosh Vira S. Procjuk Borys V. Savytskyi Hryhorii V. Soliar Tetiana Ya. Tkachuk Viktor P. Tokovyi Yurii V. Khomyak Mykola M. Shevchuk Viktor A. Yuzviak Mykola Yo. popup.nrat_date 2024-02-26 Close