Language selection

Government of Canada / Gouvernement du Canada

Search

Damage and microstructural changes in ice in compression during interaction with structures

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.4028/www.scientific.net/KEM.251-252.431
AuthorSearch for: ; Search for: ; Search for: ORCID identifier: https://orcid.org/0000-0002-0975-8884
FormatText, Article
Subjectice; damage; microcracking; recrystallization; pressure melting
Abstract
A layer of damaged ice has been observed near the contact zone of ice-structure interactions in small scale, medium scale and full scale tests. Microcracking and recrystallization were observed in the layer. It is believed that pressure melting also occurs in the layer. The objective of the present work is to investigate the process of formation of the layer. Triaxial confining tests were conducted at Memorial University of Newfoundland with constant stress. The tests showed a pressure dependent process of damage. Microcracking and recrystallization were observed to be the main type of damage at low confining pressure levels with possible melting at asperities in cracks. Recrystallization and melting were the main types of damage under high confinements. Damage was calibrated using a scalar parameter and the triaxial test data. Numerical simulations were conducted using finite element methods to simulate the interaction process. The results are consistent with the observations from the medium scale tests.
Publication date
PublisherTrans Tech Publications
In
  • Key Engineering Materials 251-252 (October 2003): 431–436.
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifierba4ae90f-6304-4743-8ef4-76f8e82d769c
Record created2019-05-13
Record modified2021-03-26
Date modified: