Effective Tensile Strength of an Ice Sheet Using a Three-dimensional FEM-DEM Approach
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A4 Artikkeli konferenssijulkaisussa
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Date
2017-06-11
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Language
en
Pages
10
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Proceedings of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC'17, Proceedings : International Conference on Port and Ocean Engineering Under Arctic Conditions
Abstract
A sea ice sheet may fail through several mechanisms when interacting with an obstacle. Susceptibility and mode of failure behave as functions of the physical size of a sheet. In this paper we compute the effective uniaxial tensile strength of an ice sheet for several different specimen sizes by applying a three-dimensional combined finite-discrete element approach. We evaluate the effect of the loading rate by using two displacement rates. Although a rate-independent cohesive formulation is used and the displacement rates applied are low, a significant rate effect emerges.Description
Keywords
Ice, Combined FEM-DEM, Beam lattice network, Rate/size effect, Effective tensile strength
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Citation
Lilja, V-P, Polojärvi, A, Tuhkuri, J & Paavilainen, J 2017, Effective Tensile Strength of an Ice Sheet Using a Three-dimensional FEM-DEM Approach . in Proceedings of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC'17 . Proceedings : International Conference on Port and Ocean Engineering Under Arctic Conditions, International Conference on Port and Ocean Engineering under Arctic Conditions (POAC), International Conference on Port and Ocean Engineering Under Arctic Conditions, Busan, Korea, Republic of, 11/06/2017 . < http://www.poac.com/Papers/2017/pdf/POAC17_132_Ville-Pekka.pdf >