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Registration Number

0222U003250, 0117U000699 , R & D reports

Title

Modern Problems of Mechanics of Materials and Structural Members with Internal Structure and Defects

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Head

Huz Oleksandr M., Доктор технічних наук

Registration Date

22-02-2022

Organization

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

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The statement is given and analytical and numerical approaches are developed to solve the problems of mechanics of composite materials with initial stresses and defects such as cracks and shell structural elements, having holes or stiffeners, under the action of static and dynamic loads. New classes of spatial problems on the fracture of bodies with cracks under the action of forces directed along the cracks are studied. The stress-strain state of composite shell structural elements with inhomogeneities, which are under the action of static and dynamic loads, has been studied. On the basis of stochastic elasticity equations for a multicomponent composite material, a model of deformation of a composite of a layered-fibrous structure with interfacial defects is developed, an algorithm for the study is proposed, and the effect of interlayer defects on the effective elastic properties of composite materials of a layered-fiber structure is studied. A technique has been developed for modeling dynamic problems of mechanics on the propagation of nonlinear cylindrical and surface waves in elastic materials, taking into account the internal structure. Practical recommendations are developed for choosing a variant of the nonlinear wave equation, studying the evolution of the initial profile of a harmonic and unit wave in the form of Gauss and the profile of a cylindrical wave in the form of the Macdonald function. Mathematical models, algorithms, and methods for calculating stress-strain states for defects at the interfacial boundary and their influence on the effective properties of composite materials are developed. An algorithm for solving and constructing a numerical-analytical solution of a plane problem of tension of a body with a crack at the interface of materials based on the Fourier transform is proposed, a model and an algorithm for calculating the contact interaction of an electroelastic half-space containing a near-surface cavity of an elliptical section.

Product Description

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Babich Stepan Yuriyovich
Bahno Oleksandr M.
Bystrov Victor M
Bogdanov Vyacheslav Leonidovych
Velichko Larisa G
Hamsheieva Olena A.
Hlukhov Andrii Yu.
Hlukhov Yurii P.
Huz Oleksandr M.
Diachenko Kseniia O.
Dashko Olha G.
Dekret Volodymyr A
Dovzhik Mikhailo V
Zhuk Oleksandr P.
Zhukova Nataliya B.
Zabuga Anotnina T.
Zagorodniuk Olena M
Zelenskii Valerii S
Kipnis Oleksandr L.
Kirilyuk Vitaliy S.
Korniienko Viktoriia F.
Lakiza Ruslana V.
Levchuk Olga I.
Mаksymiuk Volodymyr A.
Maksymiuk Nina V.
Martynova Liudmila I
Meish Volodymyr F.
Mikhailuk Tetiana P.
Nazarenko Volodymyr M
Nazarenko Lidiya V.
Omelchenko Liudmyla
Panasiuk Oleg Mykolayovych
Rushchytskyi Yarema Ya.
Savelieva Kateryna V.
Semenyuk Mikola P
Storozhuk Yevhen A.
Tkachenko Neonila Ye.
Khotenko Iryna M.
Khotenko Olena O.
TSiruk Sergii A
Сhernyshenko Ivan S.
Cheshchevyi Volodymyr I
Shchuruk Halyna I.
Yurchuk Vasyl M.

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2022-03-09