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Field Investigation and Numerical Analysis of the Deformation of L-Shaped Ice Beam

Author(s): Igor Gribanov; Aleksey Marchenko; Rocky S. Taylor

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Abstract: Complex bending deformation of L-shaped beams was previously investigated experimentally at several locations near the University Centre of Svalbard. The breaking force of the beam was related to the mechanical properties of ice by performing finite element analysis and by deriving analytical expressions for the state of stress on the surface of the sample. In the present work, we advance the analysis of the complex bending using the recently collected data. New field tests were performed in November 2019 on freshwater lake near Longyearbyen. Five extensometers were installed on the top surface of the beam to measure vertical displacements, which allow estimating the deformation of the sample. The collected data is compared with the results of numerical simulations with a particular interest in the detection pro le of the surface of the beam.


Year: 2020

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