Comparative Study on the Ice Failure Criteria Using Interface Modeling Technique

Abstract

It has been developed that the failure and mechanics of ice along with the structure characteristics govern the dynamic ice-structure interaction processes. This paper describes an ice failure characteristics that can be from impact of level ice using ice-structure interaction analysis. Ice-structure interaction can be required dynamic processes that both ice features(floes, ice island, and icebergs) and the structure experiences time variant strains and stresses. The objectof this research is to compare the result of fracture of level ice model between cohesive zone element method and contact surface element method. The failure characteristics of ice floe which is composed of plate shaped finite element model. In order to idealize a level ice material modeling, it was considered that interface between seperated inside face of ice can be reflected on the simulation. It was performed that the impact finite element simulation for level ice and then compared with experimental result of ice force which is performed by Ibrahim. It was difficult to forecast a failure face and trend of ice after impact from cylindrical structure. In order to prevent divergence of a numerical simulationdue to large delamination of ice, gravity load have been considered to protect element scattering. According to result of comparision between cohesive zone element and contact surface element method, the cohesive zone element method can be