Abstract
ABSTRACT Many current studies on the numerical simulation of ship-ice collisions, the cohesive element method and the finite element method (CEM-FEM) are mostly used to establish the sea ice model. However, due to the complex mechanical properties of sea ice and the influence of various physical factors, the cohesive element with a single parameter cannot well reflect the mechanical properties of sea ice. Based on this, a cohesive sea ice model based on mixed fracture strength parameters was established in LS-DYNA software and numerically simulated. It was found that the failure modes of the mixed parameter cohesive element sea ice model are primarily extrusion and bending failure, and the crack extension direction shows randomness, and the sea ice failure appears obviously different. In addition, under the same working conditions, the ice-breaking resistance of the cohesive unit of the mixed parameters is in good agreement with the empirical formula of Lindqvist.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call