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论文类型：会议论文

发表时间：2012-01-01

收录刊物：CPCI-S

页面范围：16-23

摘要：The flexural strength of sea ice is a key parameter in determining the ice load on offshore structures. A series of field and indoor physical tests have been carried out and the relationship between the sea ice flexural strength and sea ice parameters, such as ice temperature, salinity and sample size, has been obtained. In this study the discrete element model (DEM) is adopted to calculate the sea ice flexural strength under different ice parameters. The ice samples are constructed with regular and random packing patterns of spherical elements, respectively. To analyze the influence of particle size effect on flexural strength, three different particle sizes are chosen in the DEM simulation. The simulated flexural strengths are quite close with different particle sizes for both of the regular and random packing. The influence of bonding strength between particles is also investigated by sensitivity analysis. Finally, the feasibility of DEM in sea ice flexural strength simulation is validated by physical measurements data.