Results 31 to 40 of about 611,170 (310)

Failure mode analysis of composite cylindrical shell structure under underwater explosion

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveIn order to improve the explosion and impact resistance of the protective structures of unmanned underwater vehicles (UUVs), autonomous underwater vehicles (AUVs), air bottles, etc., the structural response and failure modes of carbon fiber ...
Kun YANG   +3 more
doaj   +1 more source

OSCILLATIONS OF SPHERICAL AND CYLINDRICAL SHELLS [PDF]

open access: yesInternational Journal of Modern Physics B, 2001
We have found the complete spectrum and eigenstates for harmonic oscillations of ideal spherical and cylindrical shells, both being infinetely thin. The spectrum of the cylindrical shell has an infinite number of Goldstone modes corresponding to folding deformations.
Erdin, Serkan, Pokrovsky, Valery L.
openaire   +2 more sources

Expanding fracture behaviors of single- and double-layer metallic cylindrical shells subjected to detonation of hollow explosives

open access: yesBaozha yu Chongji
The detonation-driven expansion and fracture behavior of single-layer and double-layer metallic cylindrical shells (with equal total thickness) were investigated via the DPS (Doppler pins system) array and high-speed photography.
Shiwen ZHANG   +5 more
doaj   +1 more source

The acoustics of curved and lined cylindrical ducts with mean flow [PDF]

open access: yes, 2010
This thesis considers linear perturbations to the steady flow of a compressible inviscid perfect gas along a cylindrical or annular duct. Particular consideration is given to the model of the duct boundary, and to the effect of curvature of the duct ...

core   +2 more sources

Analysis of the input power flow characteristics of cylindrical shells with combination boundaries

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
In this study, the input power flow problem of the cylindrical shell with complex acoustic boundaries was investigated. According to the acoustic characteristic of control domain which combination free interface and rigid wall interface at the same time ...
Luyun Chen, Yong Liu
doaj   +1 more source

A Charged Rotating Cylindrical Shell [PDF]

open access: yesGeneral Relativity and Gravitation, 2004
We give an example of a spacetime having an infinite thin rotating cylindrical shell constituted by a charged perfect fluid as a source. As the interior of the shell the Bonnor--Melvin universe is considered, while its exterior is represented by Datta--Raychaudhuri spacetime.
Geršl, J., Klepáč, P., Horský, J.
openaire   +2 more sources

Effect prediction of stiffened-ring cylindrical shells subjected to drop mass impact

open access: yesDefence Technology, 2022
This study focuses on the effect of lateral mass impact on ring-stiffened thin-walled cylindrical shell. Cylindrical shells were fabricated to validate the numerical modeling and analytical techniques, and drop tests were performed using a rigid ...
Sheng-zhuo Lu   +5 more
doaj   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

EXPERIMENTAL STUDY AND SIMULATION ON AXIAL COMPRESSION OF LAMINATED CELLULAR CYLINDRICAL SHELL (MT)

open access: yesJixie qiangdu, 2023
Experimental tests and finite element simulation methods were used in this article. The bearing loads and deformation failure modes of laminated cellular cylindrical shell under axial compression loads were studied.
HE Pu   +3 more
doaj  

Vibration analysis of ribbed and ring-stiffened FG cylindrical shell under hydrostatic pressure

open access: yesAIP Advances, 2021
This paper proposed an energy method, based on the Donnell thin shell theory, to derive the vibration characteristic equations of underwater ribbed and ring-stiffened functionally graded (FG) cylindrical shells, and the characteristic equations are ...
Bin Liang   +3 more
doaj   +1 more source

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