A VISCOPLASTIC CREEP MODEL OF SEA ICE

In this paper the theory of viscoplasticity is applied for the analysis of sea ice loads, and a mathematical creep model under uniaxial stress condition is generalized to a triaxial formulation. The maximum static ice forces exerted on a single rectangular pile are claculatedaccording to this model by using the nonlinear finite element method. The results are compared with those from other sources. The model seems to be more realistic and reasonable than those in present use such as the plastic limit analysis method and the reference stress method.