Dynamics of the elastic ice sheet

Juri Kajaste-Rudnitski

Research output: Book/ReportReport

Abstract

In the process of ice-structure interaction, elastic waves propagate outward from the contact points into the depth of a moving infinite ice sheet carrying away with them a certain amount of energy.Although the equations of motion do not contain dissipative terms the damping effect occurs due to the border geometry.If not taken into account this geometrical damping can cause substantial errors in the load evaluation.Actually to demonstrate a phenomenon in the time domain, the method of potentials is used to solve a dynamic problem of the elastic half-plane subjected to the arbitrary force acting on its boundary edge.The dynamic properties of the elastic ice sheet are also studied in the frequency domain.This research, as part of a joint project, was carried out in cooperation with the Norwegian Geotechnical Institute, Oslo, Norway.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages63
ISBN (Print)951-38-3577-4
Publication statusPublished - 1990
MoE publication typeNot Eligible

Publication series

SeriesTechnical Research Centre of Finland. Publications
Number64
ISSN0358-5069

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Keywords

  • ice loads
  • offshore structures
  • dynamic response
  • damping
  • interactions
  • models
  • elastic properties
  • geometry
  • wave propagation
  • equations

Cite this

Kajaste-Rudnitski, J. (1990). Dynamics of the elastic ice sheet. VTT Technical Research Centre of Finland. Technical Research Centre of Finland. Publications , No. 64