Numerical Simulations on Ice Failure

抄録

A numerical method is developed to estimate the failure behaviour of ice, and the model tests are carried out to verify this method. This method employs the thick-walled shell element based on the concept of the Rigid Bodies-Spring Models. This method is equipped with some functions to deal with characteristics of ice, such as material nonlinearities, geometrical nonlinearities, differences of material properties through thickness, buoyancy and self weight effects, and cracking behaviour. The verification tests of this method are carried out in the IHI ice tank on both level ice sheets and composite ice sheets including model ice ridge, and it is shown that the results of simulations have good correspondence with experimental results.