This article is cited in 15 papers

Smoothed particle hydrodynamics simulation of the submarine structure subjected to a contact underwater explosion

Zh.-F. Zhang, L.-Q. Sun, X.-L. Yao, X.-Ya. Cao

College of Shipbuilding and Ocean Engineering, Harbin Engineering University, 150001, Harbin, China

Abstract: In this paper, a modified smoothed particle hydrodynamics (SPH) formula is deduced to solve the problem of interfaces with a high density ratio. Simplified SPH models for single and double cylindrical shells (abbreviated as single-hull and double-hull models, respectively) are established to study shock wave propagation and to conduct the damage analysis. The SPH results for the single-hull model are verified by AUTODYN. In addition, the damage analysis indicates that the single-hull model is damaged more severely than the double-hull model. The inner shell in the double-hull model is protected by a water interlayer.

Keywords: damage characteristics, contact underwater explosion, cylindrical shell, SPH method, water interlayer.

UDC: 523.593

Received: 23.01.2014
Revised: 06.11.2014

DOI: 10.15372/FGV20150416

 English version: Combustion, Explosion and Shock Waves, 2015, 51:4, 502–510

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