Transient response of cylindrical shells to localized heat sources

1979 ◽  
Vol 54 (3) ◽  
pp. 337-347 ◽  
Author(s):  
Kaoru Shirakawa ◽  
Yoshihiro Ochiai
Keyword(s):  
Transient Response ◽  
Cylindrical Shells ◽  
Heat Sources

The Transient Response of Imperfect Thin-Walled Stiffened Cylindrical Shell Exposed to Side-On Underwater Explosion

2009 ◽  
Author(s):  
Ching-Yu Hsu ◽  
Chan-Yung Jen
Keyword(s):  
Cylindrical Shell ◽  
Transient Response ◽  
Cylindrical Shells ◽  
Underwater Explosion ◽  
Stiffened Cylindrical Shell ◽  
Analysis And Design ◽  
Finite Element Software ◽  
Pressure Load ◽  
Thin Walled ◽  
Stiffened Cylindrical Shells

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.

Thermoelastic state of cylindrical shells heated with moving normal-circular heat sources

1988 ◽  
Vol 20 (4) ◽  
pp. 539-546
Author(s):  
V. N. Maksimovich ◽  
L. V. Khomlyak ◽  
E. N. Novosad
Keyword(s):  
Cylindrical Shells ◽  
Thermoelastic State ◽  
Heat Sources ◽  
Circular Heat

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

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

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

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.

The transient response of submerged orthotropic cylindrical shells exposed to underwater shock

1998 ◽  
Vol 43 (3) ◽  
pp. 179-193 ◽  
Author(s):  
K.Y. Lam ◽  
Z.J. Zhang ◽  
S.W. Gong ◽  
E.S. Chan
Keyword(s):  
Transient Response ◽  
Cylindrical Shells ◽  
Underwater Shock

scholarly journals Mathematical modelling of thermoelasticity problems for thin biperiodic cylindrical shells

2021 ◽  
Author(s):  
B. Tomczyk ◽  
M. Gołąbczak ◽  
A. Litawska ◽  
A. Gołąbczak
Keyword(s):  
Constitutive Relations ◽  
Cylindrical Shells ◽  
Asymptotic Model ◽  
Heat Sources ◽  
Asymptotic Models ◽  
Stationary Action ◽  
Constant Coefficients ◽  
A Cell ◽  
Fourier Heat Conduction ◽  
Tolerance Model

AbstractThe objects of consideration are thin linearly thermoelastic Kirchhoff-Love-type circular cylindrical shells having a periodically microheterogeneous structure in circumferential and axial directions (biperiodic shells). The aim of this contribution is to formulate and discuss two new averaged mathematical models for the analysis of selected dynamic thermoelasticity problems for the shells under consideration: the non-asymptotictolerance and the consistent asymptotic models. The starting equations are the well-known governing equations of linear Kirchhoff-Love theory of thin elastic cylindrical shells combined with Duhamel–Neumann thermoelastic constitutive relations and coupled with the known linearized Fourier heat conduction equation in which the heat sources are neglected. For the microperiodic shells under consideration, the starting equations mentioned above have highly oscillating, non-continuous and periodic coefficients. The tolerance model is derived applying the tolerance averaging technique and a certain extension of the known stationary action principle. It has constant coefficients depending also on a cell size. Hence, this model makes it possible to study the effect of a microstructure size on the global shell thermoelasticity (the length-scale effect). The consistent asymptotic model is obtained using the consistent asymptotic approach. It has constant coefficients being independent of the period lengths. Moreover, the comparison between the tolerance model for biperiodic shells proposed here and the known tolerance model for cylindrical shells with a periodic structure in the circumferential direction only (uniperiodic shells) is presented.

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