AN ANALYTICAL PREDICTION METHOD FOR CRASHWORTHINESS OF SIDE SHELL STIFFENERS

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (10) : 60-65.

Bin Sun1, Zhiqiang Hu1, Jin Wang1,2

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Abstract

A theoretical model for stiffeners on outer plating of ship side shell under the scenario of struck by a bulbous bow is proposed in this paper. It is based on a study of the progressive deformation process of structural deformation results and the plastic-elastic theory. This paper stresses the research on establishing the characteristic deformation mechanism and identifying the major energy dissipation pattern of the stiffeners attached on side shell plating. The analytical expressions of distortion energy of stiffeners and its resistance are derived. The analytical method is verified by numerical simulations using code LS_DYNA. The results of numerical simulations and those by the proposed analytical method match well. The proposed analytical method can be used for quick assessment of the performances of ship side structures during ship collision.

Key words

ship collision / stiffeners on side shell plating / structural damage / simplified analytical method / numerical simulation

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Bin Sun1, Zhiqiang Hu1, Jin Wang1,2. AN ANALYTICAL PREDICTION METHOD FOR CRASHWORTHINESS OF SIDE SHELL STIFFENERS[J]. Journal of Vibration and Shock, 2016, 35(10): 60-65

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