Abstract No.C181010-264

Author name(s): Tongqiang YU, Kun LIU, Zili WANG

Company: Jiangsu University of Science and Technology, China

The fully opening of the Arctic sea lanes has brought great threat to the safety of polar ships. Sea ice exists even in summer, and the presence of floating ice significantly increases the possibility of collision. The safety of ships in Arctic area is gaining more and more attention. However, due to the complex mechanical properties of sea ice, a reasonable description of its material constitutive relation is the main factor affecting the accusation of calculation and analysis. In this paper, a constitutive model of ice material considering the effect of temperature is presented, and a user-defined subroutine is developed, both of them are embedded into the finite element software LS-DYNA. Based on this, the damage and deformation characteristics of the ship structure and ice are studied, and the effects of collision scenario parameters are discussed. The results of this paper can provide reference for the design and manufacture of polar ships.

KEY WORDS: ship-ice collision; dynamic response; ice model; temperature effect; numerical simulation

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