Results 1 to 10 of about 529 (157)

Safety Evaluation of Arch Dam Subjected to Underwater Contact Explosion

open access: yesMathematics, 2021
The stability of an arch dam can be significantly damaged by an extreme underwater explosion. This study proposed a damage index for assessing the degree of local damage of an arch dam after the dam was subjected to an underwater explosion.
Xiaohua Zhao   +3 more
doaj   +3 more sources

Damage Characteristics of Polymer Plates under the Impact of the Near-Field and Contact Underwater Explosion

open access: yesAdvances in Materials Science and Engineering, 2021
In order to study the damage characteristics of polymer plates under the impact of the underwater explosion, the underwater contact and near-field explosion tests of polymer plates were conducted using different explosive quantities. In this paper, eight
Shucan Liu   +4 more
doaj   +1 more source

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

Pressure Wave Caused by Trinitrotoluene (TNT) Underwater Explosion—Short Review

open access: yesApplied Sciences, 2020
The development of computational techniques and computer hardware has an impact the analysis of short-term (fast-changing) processes, such as the impact of a non-contact underwater explosion pressure waves.
Radosław Kiciński, Bogdan Szturomski
doaj   +1 more source

Numerical modeling and simulation of underwater explosions interacting with discrete rigid bodies

open access: yesAIP Advances, 2023
The smoothed particle hydrodynamics (SPH) method is widely used to simulate underwater explosion phenomena. However, previous studies have focused on the interaction between the underwater explosion and continuous structures (e.g., steel plates and dams),
Tao Zhang   +3 more
doaj   +1 more source

Blast resistance of air-backed RC slab against underwater contact explosion

open access: yesDefence Technology, 2023
Reinforced concrete (RC) structures are common in engineering, and usually exposed to air or water, may be subjected to various blast scenarios. This paper aims to investigate the blast resistance of an air-backed RC slab against underwater contact ...
Guang-dong Yang   +5 more
doaj   +1 more source

Algorithm describing pressure distribution of non-contact TNT explosion [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2014
[b]Abstract[/b]. The aim of this study is to develop a computational algorithm, describing the shock wave pressure distribution in the space induced by non-contact TNT explosion. The procedure describes pressure distribution on a damp surface of the hull.
Radosław Kiciński, Bogdan Szturomski
doaj   +1 more source

Calculation of explosion bending moment in hull girders subjected to non-contact underwater explosions

open access: yesZhongguo Jianchuan Yanjiu, 2017
Non-contact underwater explosion can generate violent movement on hull girders,which may cause longitudinal strength problems. The explosion bending moment can be calculated using a detailed finite element ship model,but this costs considerable working ...
WU Guangming   +3 more
doaj   +1 more source

Numerical Simulation of Damage to Ship Structure by Underwater Contact Explosion Shock Wave

open access: yesChemical Engineering Transactions, 2017
The purpose of this paper was to study the damage mechanism of the underwater contact explosion test of the model structure, which provided a basis for the protection mechanism of the side protective structure.
Peiyin Yuan, Yu Zhao
doaj   +1 more source

Impact response of composite lattice sandwich plate structure subjected to underwater explosion

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to improve the anti-shock perfomance of ships subjected to underwater explosion, this paper studies the energy absorption and impact resistance of the new protective structure consisted of carbon fiber reinforced plastic (CFRP)-lattice ...
Liuwei MAO   +3 more
doaj   +1 more source

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