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Registration Number

0224U002113, 0123U100829 , R & D reports

Title

Calculation of stress concentration near holes in thin-walled members of rocket technology structures made of nonlinear elastic and viscoelastic materials, and assessing its influence on the strength and fracture of these structural members

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Head

Chernyshenko Ivan S., д.т.н.

Registration Date

06-02-2024

Organization

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

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 On the basis of the refined straight line model and the phenomenological theory of nonlinear elasticity of polymer orthotropic composite materials, an improved technique for calculating the nonlinear elastic state of shells made of composites of arbitrary shear stiffness, including the limiting case of the Kirchhoff-Love hypotheses, has been developed. The effect of nonlinear properties, shear stiffness, geometric and physical-mechanical parameters of the composite material on the stress-strain state of spherical, conical and cylindrical members of rockets with holes was numerically investigated. A number of both evident and new mechanical effects regarding the orientation of the axes of orthotropy in the shell and the mutual influence of nonlinearity and transverse shear on the stress state of rocketry members have been detected.

Product Description

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Abrosov Yurii
Babich Stepan Yuriyovich
Bahno Oleksandr M.
Bogdanova Olga S.
Hlukhov Yurii P.
Guz Oleksandr M.
Zhuk Oleksandr P.
Kaminskyi Anatolii O.
Korniienko Viktoriia F.
Kurchakov Yevhen Ye.
Mаksymiuk Volodymyr A.
Maksymiuk Nina V.
Selivanov Mykhailo F.
Storozhuk Yevhen A.
Tereschenko Lidiia M.
Chornoivan Yurii O.
Shchuruk Halyna I.

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2024-02-06