The Numerical Simulation Of The Nonsimultaneous Failure Of Ice-structure Interaction

In the high latitude cold region, the harm of the ice on the water and ocean structure is more and more notable, and the calculating of ice load is becoming one of the first regarded problems. But in the evaluation of ice force, it tends to be overestimated, this problem has troubled academic circle for a long time. The nonsimultaneous failure of ice sheet is one of the reasons that explain the produce of this problem. Compared with the model test, this paper makes an exploration of the Numerical Simulation of this problem.The paper introduced the concept of the ice nonsimultaneous failure at first and discussed several theories of the nonsimultaneous failure and the formula calculation in profession criterion. Collecting and analyzing data, the paper summarized the development of Numerical Simulation on ice load and expatiated on the finite element and nonlinear contact theory. Based on the ANSYS/LS-DYNA explicit dynamic finite element analysis software, the paper made the Numerical Simulation of the ice-structure interaction and the process of the simulation was adjusted and improved consult the model test result for the good result of the ice load. Furthermore, on the basis of previous study, the effect of pipe diameter on ice loads was discussed. At the same time, the paper tried to make the method of fluid-structure interaction out.With the analysis of the Numerical Simulation result, it is proved that the research by the Numerical Simulation of this problem has expectation foreground. A simple, doable, economical Numerical Simulation analysis method that is used for calculating the ice load on ocean and water structure can be carried out.