Abstract
In order to investigate ice loads on the ship and offshore structures, the discrete element method (DEM) is employed to construct ice model. In this method, the sea ice is modelled by the bonding-breaking spherical particles and dilated polyhedral element based on the Minkowski sums theory, respectively. Additionally, the size effect of spherical particle is discussed in the numerical tests of uniaxial compressive and three-point bending of sea ice. Considering different ice condition, the ice loads on these structures can be obtained by the ice DEM model. The numerical results show that the proposed ice DEM model can effectively simulate the interaction between sea ice and ship and platform structures.
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Acknowledgments
The study is financial supported by the ABS (American Bureau of Shipping), the National Natural Science Foundation of China (Grant No. 41576179) and the Fundamental Research Funds for the Central Universities (DUT15ZD105). The author appreciates the discussions with Jiancheng Liu, Xiang Liu and YingYing Chen of ABS. The DEM simulations were performed by the graduates of Dalian University of Technology (Shaocheng Di, Lu Liu, Xue Long, Shuai Kong and Shuailin Wang).
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Ji, S. (2017). Discrete Element Modeling of Ice Loads on Ship and Offshore Structures. In: Li, X., Feng, Y., Mustoe, G. (eds) Proceedings of the 7th International Conference on Discrete Element Methods. DEM 2016. Springer Proceedings in Physics, vol 188. Springer, Singapore. https://doi.org/10.1007/978-981-10-1926-5_6
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DOI: https://doi.org/10.1007/978-981-10-1926-5_6
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