Dynamic response of hull plates subjected to near field underwater explosion bubble jet load

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (9) : 214-220.

JIANG Zhong-tao1, LI Ye2, PANG Xue-jia3, WANG Shi-ping1

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Abstract

Based on the coupled Euler-Lagrange (CEL) algorithm in the software ABAQUS, processes of near field underwater explosion bubble jet load impacting hull plates were simulated. The numerical results of CEL algorithm agreed well with Obara’ test ones, so the effectiveness of the numerical method was verified. Then, the load pressure characteristics of underwater explosion jet, jet velocity distribution features and the distribution features of structural shear stress induced by jet were investigated. The results provided a reference for the anti-impact design of hull plates against underwater explosion jet load in practical sea-battles.

Key words

underwater explosion / jet load / hull plate / dynamic response analysis

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JIANG Zhong-tao1, LI Ye2, PANG Xue-jia3, WANG Shi-ping1 . Dynamic response of hull plates subjected to near field underwater explosion bubble jet load[J]. Journal of Vibration and Shock, 2018, 37(9): 214-220

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