Investigation of the dynamics of a three-layer shell structure of an elliptical cross-section under non-stationary dynamic loading
DOI:
https://doi.org/10.32347/2410-2547.2023.111.147-154Keywords:
three-layer cylindrical shell, polymer aggregate, finite element model, elliptical cross section, non-stationary load, bearing layerAbstract
The dynamic behavior of a three-layer cylindrical structure of normal elliptical cross-section with a discrete polymer filler under the action of an internal non-stationary load was studied. Finite element models of the structure were created and deformations and normal stresses of its bearing layers were calculated. Variants of structures without polymer aggregate and with aggregate of different stiffness, reinforced with ribs, were considered. A comparative analysis of the deformations and stresses of the bearing layers at the ratio of the modulus of elasticity of the material of the bearing layers and the aggregate E1.2/Et=500 and E1.2/Et=50 is given. Finite elements of the Solid and Laminate types are used in the finite-element models. The calculations were carried out by the software and calculation complex Nastran using the direct transient dynamic process algorithm.
References
Lugovoi P.Z. Dyinamika konstruktyivno-neodnoridnyih obolonkovyih struktur: monografiya (Dynamics of structurally inhomogenous shell structures: monograph) / P.Z. Lugovoi, V. FMeish, Y. aMeish/ – K.:Lira-K, 2022. – 336 p.
Lugovoi P. Z., Gaidaichuk V.V., Skosarenko Yu.V., Kotenko K.E. Stress–Strain State of Three-Layer Cylindrical Shells with Reinforced Light Core Under Nonstationary Loading. - "International Applied Mechanics", 2021, 57(4), P. 395–404.
Golovko K. G., Lugovoi P. Z. &Meish V. F. Dynamics of inhomogeneous shells under nonstationary loads. Кyiv. Publ. Centre “Kyiv University”, 2012 – 541 р.
Meish V.F., MeishYu.A., Pavlyuk A.V. Dynamics of a Three-Layer Elliptic Cylindrical Shell Reinforced with Discrete Rings // Int. Appl. Mech. – 2018. – 54, N 2. – P. 172 – 179.
Segerlind L. Primenenie metoda konechnyih elementov (Application of the finite element method). M.: Mir, 1979- 392 p.
Lugovoi P. Z., Gaidaichuk V.V., OrlenkoS.P., Kotenko K.E. Dynamics of Sandwich Conical Shells with a Discretely Inhomogeneous Core Under Nonstationary Loading. -"International Applied Mechanics", 2022, 58(4), P. 410–422.
Gaidaichuk V.V., Kotenko K.E., Snizhko N.A. Impact of engineering/technology factors and nonstationary loads on the stress - strain state of a three-layer cylindrical shell. – 2021. – Issue. 107. – Р. – 281-287.
Gaidaichuk V.V., Kotenko K.E., Lavinsky D. S. Impact of elasticity of polymer filler of three-layer cylindrical structure of elliptical section on its behavior under internal impulse loading / Strength of Materials and Theory of Structures: Scientific-and-technical collected articles – Kyiv: KNUBA, 2022. – Issue 109. – P. 467-472.
Rychkov S. P. Modelirovanie konstruktsiy v srede Femap with NX Nastran (Structural modeling in Femap with NX Nastran).-M.: DMK Press, 2016.-784 p.
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