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Information × Registration Number 0222U002361, 0117U000701 , R & D reports Title Nonlinear mechanics of the deformation and fracture processes of elastic and nonelastic materials and structural elements taking into account the coupling of the mechanical and physical fields of different nature popup.stage_title Head Karnaukhov Vasil G., Доктор фізико-математичних наук Registration Date 11-02-2022 Organization S.P.Timoshenko Institute of Mechanics popup.description2 The construction methods of creep models of viscoelastic materials taking into account the type of stress state is offered; the experimental approbation of models at solving problems of determination of creep deformations and stress relaxation of thin-walled tubular elements from nonlinear viscoelastic materials under biaxial loading is carried out. Methods for determining the parameters of viscoelastic behavior and crack resistance of structural elements made of nanocomposites are analyzed; approaches to the optimal determination of the characteristics of viscoelastic nanocomposites based on experimental data are developed, the possibility of using experimental data on crack resistance of nanocomposites to predict the durability of structural elements made of them is analyzed. The numerical method for studying the stress-strain state of layered thin-walled shells and massive bodies of revolution, which simulate elements of nuclear and rocket and space technology that may be exposed to short-term radiation and thermal stress during operation, has been developed. Mathematical models and numerical-analytical methods for studying the parametric vibrations of thin-walled layered viscoelastic piezoelectric elements under the action of harmonic electromechanical loading have been developed and the influence of transverse shear deformations and geometrical parameters on the parametric vibrations of cylindrical piezoelectric panels was investigated. Recommendations for the study of non-linear processes of deformation and fracture of elastic and nonelastic materials and structural elements based on proponing models and techniques are presented. Product Description popup.authors Babeshko Maya O. Bogdanova Olga S. Vynohradova Larysa B. Vovkodav Oksana V. Galishin Oleksandr Z. Hlemeida Serhii K. Golub Vladyslav P. Danylchenko Svitlana B. Dmytriieva Yevgeniia O. Zhuk Yaroslav O. Zinchuk Liubov P. Kaminska Olena A. Kaminskyi Anatolii O. Karnaukhov Vasyl G. Kasperska Valentyna V. Kyrychok Ivan F. Kobzar Yuriy M. Kozlov Volodymyr I. Kompantseva Tetiana M. Kurchakov Yevhen Ye. Masalova Svitlana M. Maslov Borys P. Nechyporenko Olena S. Orlenko Serhii P. Pavliuk Yaroslav V. Pelykh Volodymyr M. Petrenko Nataliia V. Plashchynska Alla V. Pohrebniak Anatolii D. Reznik Vira S. Romanov Oleksandr V. Savchenko Vitalii G. Selivanov Mykhailo F. Senchenkov Ihor K. Tormakhov Mykola M. Fernati Pavlo V. Chervinko Olha P. Chornoivan Yurii O. popup.nrat_date 2022-03-09 Close