Investigation of the dynamic behavior of three-layer cylindrical shells of elliptical form under internal axisymmetric pulse loading
DOI:
https://doi.org/10.32347/2410-2547.2022.109.263-272Keywords:
three-layered cylindrical shell, circular and elliptical shape of the cross-sections, finite element model, dynamic behavior, axisymmetric impulse load, finite element methodAbstract
The results of the assessment of the dynamic behavior of three-layer cylindrical shells of circular and elliptical cross-sections under internal impulse loading are given. The finite-element method was used to calculate the indicators of the stress-strain state (SSS) of such structures by the NASTRAN software complex. The values normal deflections and normal stresses of circular and three elliptical forms of intersection of cylindrical structures are determined. A comparative analysis of the values of these indicators with the results of the dynamic behavior of uneven cylindrical shells was performed.
The shape and curvature of the cross section of three-layer cylindrical thin-walled composite shells significantly affect their SSS under dynamic impulse loading.
Replacing the circular shape of the cross section of a cylindrical structure with an elliptical one and increasing the ratio of the semiaxes of the elliptical section leads to an increase in normal deflections and normal stresses of the middle surface of the structure.
References
Lugovoi P.Z., Meish V.F. Dynamics of inhomogeneous shell sysnems under non-stationary loading (survey) // International Applied Mechanics – 2017, 53, № 5 – Р. 481–537.
Meish V.F., Shtantsel' S.É Dynamic problems in the theory of sandwich shells of revolution with a discrete core under nonstationary loads // International Applied Mechanics – 2002, 38, № 12 – Р. 1501–1507.
Timoshenko S.P., Woinowsky-Krieger S. Theory of Plates and Shells. Second Edition. New York etc.: McGraw-Hill Book Company INC, 1959. 636 p.
Meish V.F., Meish Y.A. Dynamichna povedinka tsylindrychnykh obolonok nekruhovoho pererizu pry nestatsionarnykh navantazhenniakh (Dynamic behavior of cylindrical shells of non-circular cross-section under non-stationary loads). Dopov. Nac. akad. nauk Ukr. 2021. № 5 p. 33—38.
Segerlind Larry J. Primenenie metoda konechnyih elementov (Application of the finite element method). M.: Mir, 1979- 392 p.
Rychkov S.P. Modelirovanie konstruktsiy v sredeFemap with NX Nastran (Structural modeling in Femap with NX Nastran). - M.: DMK Press, 2016.-784 p.
Gaidaichuk V.V., Kotenko K.E. Stress - strain state of a three-layer cylindrical shell under internal axisymmetric pulse load с Strength of Materials and Theory of Structures. – 2020. – Issue. 105. – Р. – 145-151.
Lugovoi P.Z., Gaidaichuk V.V., Оrlenko S.P., Kotenko K.E. Dynamika trysharovykh konichnykh obolonok z dyskretno neodnoridnym zapovniuvachem pry nestatsionarnykh navantazhenniakh (Dynamics of three-layer conical shells with discretely inhomogeneous aggregate under nonstationary loads) // International Applied Mechanics – 2022, 58, № 4 – Р.
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.
Novozhilov, V.V. Teoriya tonkih obolochek (Theory of thin shells). – L.: Gosizdat Sudostroitel'noy literatury, 1951. – 344 p. (in Russian).
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
