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Development of a Probabilistic Ice Load Model Based on Empirical Descriptions of High Pressure Zone Attributes

[+] Author Affiliations
Rocky S. Taylor

Memorial University of Newfoundland, St. John’s, NL, CanadaC-CORE Centre for Arctic Resource Development, St. John’s, NL, Canada

Martin Richard

C-CORE Ice Engineering, St. John’s, NL, Canada

Paper No. OMAE2014-24353, pp. V010T07A049; 6 pages
doi:10.1115/OMAE2014-24353
From:
  • ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 10: Polar and Arctic Science and Technology
  • San Francisco, California, USA, June 8–13, 2014
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4556-1
  • Copyright © 2014 by ASME

abstract

During an ice-structure interaction, the localization of contact into high pressure zones (hpzs) has important implications for the manner in which loads are transmitted to the structure. In a companion paper, new methods for extracting empirical descriptions of the attributes of individual hpzs from tactile sensor field data for thin first-year sea ice have been presented. In the present paper these new empirical hpz relationships have been incorporated into a probabilistic ice load model, which has been used to simulate ice loads during level ice interactions with a rigid structure. Additional aspects of the ice failure process, such as relationships between individual hpzs and the spatial-temporal distribution of hpzs during an interaction have also been explored. Preliminary results from the empirical hpz ice load model have been compared with existing empirical models and are discussed in the context of both local and global loads acting on offshore structures.

Copyright © 2014 by ASME

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