Publication Detail

On the rational selection of strengthening criteria for navigation in ice

P. Xirouchakis
1985
118 pp.
MITSG 85-32TN

Methods are summarized to predict the maximum ice sheet pressure exerted on the walls of the side shell structure of an ice-transiting vessel. Structural models, based on the theory of beams on elastic foundation, are used to define stiffness criteria for ice navigation. Elastic-plastic frame buckling criteria are developed using a generalized Shanley numerical model. The lower bound theorem of limit analysis is used to determine the collapse pressure of the structure. From this information numerical models are developed to define strengthening criteria by evaluating ice damage records.

type: Technical reports

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