Strength of Ice in Brittle Regime—Multiscale Modelling Approach

Kari Kolari, Kouhia Reijo

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

Abstract

A three dimensional constitutive model based on micromechanical behaviour of granular and columnar ice in the brittle regime is proposed. The model exploits the experimentally observed crack initiation mechanism; grain boundary sliding. The growth of the initiated cracks is assumed to follow the sliding wing crack approach. The model predicts qualitatively and quantitatively the major failure modes and strength of columnar and granular ice under biaxial compression. As shown in the numerical examples, the model captures for example the anisotropic strength of columnar ice under biaxial loading both across and along column loading. Although the model is able to predict splitting and spalling of columnar ice, the shear-like fault is not captured by the current model. The model is implemented into the Abaqus/Explicit FE-software.
Original languageEnglish
Title of host publicationIUTAM Bookseries
EditorsArttu Polojärvi, Jukka Tuhkuri
PublisherSpringer
Chapter2
Pages9-30
Number of pages22
ISBN (Electronic)978-3-030-80439-8
ISBN (Print)978-3-030-80438-1
DOIs
Publication statusPublished - 2022
MoE publication typeA3 Part of a book or another research book
EventIUTAM Symposium on Physics and Mechanics of Sea Ice - Aalto University, Espoo, Finland
Duration: 3 Jun 20199 Jun 2019

Publication series

SeriesIUTAM Bookseries
Volume39
ISSN1875-3507

Conference

ConferenceIUTAM Symposium on Physics and Mechanics of Sea Ice
Country/TerritoryFinland
CityEspoo
Period3/06/199/06/19

Keywords

  • Columnar Ice
  • Modelling
  • Brittle

Fingerprint

Dive into the research topics of 'Strength of Ice in Brittle Regime—Multiscale Modelling Approach'. Together they form a unique fingerprint.

Cite this