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.
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Original Russian Text © Z. Zhang, L. Sun, X. Yao, X. Cao.
Published in Fizika Goreniya i Vzryva, Vol. 51, No. 4, pp. 116–125, July–August, 2015.
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Zhang, Z., Sun, L., Yao, X. et al. Smoothed particle hydrodynamics simulation of the submarine structure subjected to a contact underwater explosion. Combust Explos Shock Waves 51, 502–510 (2015). https://doi.org/10.1134/S0010508215040164
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DOI: https://doi.org/10.1134/S0010508215040164