Results 131 to 140 of about 441 (164)
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Experimental and Numerical Investigation of Reinforced Concrete Pile Subjected to Near-Field Non-Contact Underwater Explosion

International Journal of Structural Stability and Dynamics, 2020
High-pile wharf is an important port structure and may suffer from accidental explosions or terrorist bombing attack during the service life. The reinforced concrete (RC) pile is one of the popular vertical load-bearing piles of high-pile wharf structure.
Qiushi Yan   +4 more
openaire   +1 more source

A COMPARATIVE DAMAGE STUDY OF AIR- AND WATER-BACKED PLATES SUBJECTED TO NON-CONTACT UNDERWATER EXPLOSION

International Journal of Modern Physics B, 2008
The response of the side shell to non-contact underwater explosion is of major concern in ship design. While extensive research is carried out on air-backed plates, relatively less attention is paid to water-backed plates. Nevertheless, the response of the water-backed plates becomes relevant when the water filled side shells are exposed to an ...
Rajendran, R., Lee, J. M.
openaire   +2 more sources

Research on the shock resistance optimal design of small-sized submerged vehicle subjected to non-contact underwater explosion

Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2017
How to improve the strength of submerged structures for undertaking the underwater explosion loading is an important problem confronted by the designers of surface ships and submarines. In this article, an optimal design of a small-sized submerged vehicle with internal components has been carried out to enhance the shock resistance.
Wenzheng Zhang, Weikang Jiang
openaire   +1 more source

Reloading effects on plane plates subjected to non-contact underwater explosion

Journal of Materials Processing Technology, 2008
Underwater explosion damage of a plane plate restrained at its edges occurs in more than one phase. While the initial plate kick-off velocity is due to the primary shock pulse, the secondary, tertiary and the following responses are clearly due to the reloading effects.
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Finite Element Analysis of Deep Elliptical Submersible Pressure Hull Subjected to a Side-On Non-Contact Underwater Explosion

Applied Mechanics and Materials, 2014
Predicting the dynamic response of a floating and submerged structure subjected to underwater explosion is greatly complicated by the explosion of a high explosive, propagation of shock wave, bubble-pulse, complex fluid-structure interaction phenomena and the dynamic behavior of the floating structures.
Fathallah Elsayed   +3 more
openaire   +1 more source

Numerical Study on the Response of Functionally Graded PVC Foam Core Sandwich Panels Subjected to Non-Contact Underwater Explosion

Volume 3: Structures, Safety, and Reliability, 2018
In this paper, the numerical model was developed by using the commercial code LS/DYNA to investigate the dynamic response of sandwich panels with three PVC foam core layers subjected to non-contact underwater explosion. The simulation results showed that the structural response of the sandwich panel could be divided into four sequential regimes: (1 ...
Tianyu Zhou   +4 more
openaire   +1 more source

Non-contact near-field underwater explosion induced shock-wave loading of submerged rigid structures: Nonlinear compressibility effects in fluid structure interaction

Journal of Applied Physics, 2012
A novel theory has been developed for underwater explosion induced shock wave loading considering nonlinear compressible medium both front and back of the free standing rigid plate. Both analytical formulation and numerical simulations have been performed in this manuscript for different type of shock loading profiles, different plate masses as well as
Ritwik Ghoshal, Nilanjan Mitra
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A Design Approach to Assess Effects of Non-Contact Underwater Explosions on Naval Composite Vessels

Journal of Marine Science and Application
Despite the non-contact underwater explosion phenomena (UNDEX) have been studied for decades and several numerical methods have been proposed in literature, its effects on military structures, especially composite ones, are even nowadays matter of research.
F. Mannacio   +4 more
openaire   +1 more source

Effective shock factors for the inelastic damage prediction of clamped plane plates subjected to non-contact underwater explosion

The Journal of Strain Analysis for Engineering Design, 2009
Shock factors are conventionally used to designate the effect of an underwater explosion on a target. The concept of the effective shock factor was introduced by Rajendran and Narasimhan in a paper entitled ‘A shock factor based approach for the damage assessment of plane plates subjected to underwater explosion’, published in the Journal of Strain ...
openaire   +1 more source

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