Convergence of transient response computations for cylindrical shells based on the Williams and mode‐superposition methods

The thin-walled stiffened cylindrical shells are usually applied in a submarine which takes the external pressure load, or in a boiler, pressure vessel or pipeline system which takes the internal pressure load. The thin-walled stiffened cylindrical shells under hydrodynamic loading are very sensitive to geometrical imperfections. This study is investigating an imperfect thin-walled stiffened cylindrical shell (out-of-round ratio is ψ = 2%) at a depth of 50m below the water level to see how it withstands sideward TNT 782 kg underwater explosion loading so as to understand its structural transient response. ABAQUS finite element software is used as an analysis tool in the current study, meanwhile, during the analysis process, the Fluid-Structure Interaction (FSI) condition is employed. The structural transient response results of stress and displacement time history of the imperfect thin-walled stiffened cylindrical shell can be used as a reference for the anti-underwater explosion analysis and design of future submersible vehicles, pressure hulls or related structural designs.

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Transient response of cylindrical shells to localized heat sources

Nuclear Engineering and Design ◽

10.1016/0029-5493(79)90178-x ◽

1979 ◽

Vol 54 (3) ◽

pp. 337-347 ◽

Cited By ~ 4

Author(s):

Kaoru Shirakawa ◽

Yoshihiro Ochiai

Keyword(s):

Transient Response ◽

Cylindrical Shells ◽

Heat Sources

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Transient Response Due to a Pair of Concentric Cylindrical Shells in a Uniform Magnetic Field

Exploration Geophysics ◽

10.1071/eg981029 ◽

1981 ◽

Vol 12 (1-2) ◽

pp. 29-32

Author(s):

R. Nagendra ◽

I. B. Ramaprasada Rao ◽

V. L. S. Bhimasankaram

Keyword(s):

Magnetic Field ◽

Transient Response ◽

Uniform Magnetic Field ◽

Cylindrical Shells

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Transient Response of Functionally Graded Material Circular Cylindrical Shells with Magnetostrictive Layer

Journal of Mechanics ◽

10.1017/jmech.2016.5 ◽

2016 ◽

Vol 32 (4) ◽

pp. 473-478

Author(s):

C.-C. Hong

Keyword(s):

Transient Response ◽

Functionally Graded Material ◽

Cylindrical Shells ◽

Functionally Graded ◽

Normal Displacement ◽

Control Gain ◽

Graded Material ◽

Circular Cylindrical Shells ◽

Generalized Differential ◽

Power Law Index

AbstractThe generalized differential quadrature (GDQ) method is used to investigate the transient response of magnetostrictive functionally graded material (FGM) circular cylindrical shells. The effects of control gain value, thermal load temperature and power-law index on transient responses of dominant normal displacement and thermal stress are analyzed. With velocity feedback and suitable product values of coil constant by control gain in the magnetostrictive FGM shells can reduce the transient amplitude of displacement into a smaller value.

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