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Registration Number

0225U003729, (0119U103761) , R & D reports

Title

Development of methods for solving the problems of statics and dynamics for heterogeneous materials and thin-walled structural elements

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Аналіз результатів і розробка рекомендацій щодо створення інженерних методів розрахунку неоднорідних матеріалів і елементів конструкцій при статичному і динамічному навантаженні

Head

Huz Oleksandr M., Доктор технічних наук

Registration Date

08-08-2025

Organization

S.P. Tymoshenka Institute of Mechanics of the National Academy of Sciences of Ukraine

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Research of the stress-strain state of inhomogeneous materials and thin-walled structural elements under the influence of static and dynamic loads, including: statement of tasks; development of linear and nonlinear theories; development of methods, algorithms, programs; solving specific classes of problems for layered materials and shell elements of structures of spherical, cylindrical and conical shapes, weakened by holes and cutouts; analysis of the results and development of recommendations for the creation of engineering methods for calculating materials and structural elements with heterogeneities under static and dynamic load.

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 Within the framework of the three-dimensional linearized theory for bodies with initial stresses, the influence of layer slippage and initial stresses on the propagation of axisymmetric waves and torsion waves in layered composite materials was investigated. The regularities of the propagation of normal waves in a hydroelastic system consisting of a layer of viscous compressible fluid and a prestressed compressible elastic half-space were established, as well as the influence of initial stresses and viscous compressible fluid on them. Based on the theory of Tymoshenko shells, a numerical algorithm was constructed and nonstationary oscillations of conical shells of variable thickness under the action of impulse loads were studied. A statement was given and a method for numerically solving physically nonlinear statics problems for thin spherical, cylindrical and conical shells with an elliptical or rectangular hole was developed. Based on a series of calculations, the regularities of the distribution of displacements, deformations, and stresses around the hole were established depending on the orthotropy and nonlinear properties of the material.

Product Description

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Abrosov Yurii Yu.
Babych Stepan Yu.
Bahno Oleksandr M.
Bohdanov Viacheslav L.
Hlukhov Andrii Yu.
Hlukhov Yurii P.
Zhuk Oleksandr P.
Lysenko Anna V.
Maksymiuk Volodymyr A.
Maksymiuk Nina V.
Pihol Оksana V.
Storozhuk Yevhen A.
Chernyshenko Ivan S.
Shchuruk Halyna I.

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2025-08-08