Current design standards for ships operating in ice-covered waters involve great deal of uncertainty in the associated risk level. The main reason for this uncertainty is the stochastic nature of ice failure process during ice-structure interaction, which means that the load imposed by ice on structures cannot be accurately defined. Therefore, rule requirements by Classification Societies define the pressure loads on patches of predefined sizes, which cannot accurately represent the real ice-structure interaction process. To partly overcome this limitation, this paper proposes alternative approaches for applying pressure, discusses the relevance of these loading scenarios and compares the resulting structural damage to the one obtained with current design approach.

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