A three-dimensional FEM-DEM model of an ice sheet

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Abstract

A three-dimensional combined finite-discrete element (FEM-DEM) model of an ice sheet is presented. Centroidal Voronoi tessellation with a random generating point set is used to produce an unstructured mesh. Mesh consists of convex polyhedra as the discrete elements and a Delaunay-triangulated network, or a lattice, of Timoshenko beam elements connecting their mass centroids. We investigate, by performing simple in-plane and out-of-plane mechanical tests, how the model behaves while the sheet is still intact. We compute the effective Young’s modulus and study the bending of an ice sheet on an elastic foundation for several different specimen sizes.
Original languageEnglish
Title of host publicationProceedings of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC'17
PublisherPOAC
Number of pages12
Publication statusPublished - 11 Jun 2017
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Port and Ocean Engineering Under Arctic Conditions - Busan, Korea, Republic of
Duration: 11 Jun 201716 Jun 2017
Conference number: 24

Publication series

NameProceedings : International Conference on Port and Ocean Engineering Under Arctic Conditions
PublisherPOAC
ISSN (Print)0376-6756
ISSN (Electronic)2077-7841

Conference

ConferenceInternational Conference on Port and Ocean Engineering Under Arctic Conditions
Abbreviated titlePOAC
CountryKorea, Republic of
CityBusan
Period11/06/201716/06/2017

Keywords

  • Ice
  • Combined FEM-DEM
  • Beam lattice network
  • Size effect
  • Bending

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  • Cite this

    Lilja, V-P., Polojärvi, A., Tuhkuri, J., & Paavilainen, J. (2017). A three-dimensional FEM-DEM model of an ice sheet. 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). POAC.