Field Experiments on the Friction Coefficient of Sea Ice on Sea Ice

Sergiy Sukhorukov*, Mauri Määttänen, Sveinung Loset

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The friction of sea ice on sea ice is important for a number of processes in which ice is interacting with ice or offshore and coastal structures. Friction experiments with sea ice on sea ice were performed in the Adventfjord at Spitsbergen in March and April of 2011. The tests included study of the dependence of the kinetic friction coefficient on normal pressure (4 - 45 kPa), sliding velocities (6 - 43 mm/s), the presence of sea water at the sliding interface, and ice block orientation during the sliding. In addition, several tests were performed to study the effect of repeated sliding over the same track on the kinetic friction coefficient and the effect of the stationary contact time (the hold time was 5 s, 20 s and 80 s) on the static friction coefficient. The kinetic friction coefficient decreased with increasing sliding velocity and did not change with a change in the normal load. Stick-slip was observed in all experiments with a sliding velocity less than 10 mm/s. The presence of sea water at the interface decreased the kinetic friction coefficient at a low sliding velocity (similar to 10 mm/s) and had no effect at a high sliding velocity (similar to 40 mm/s). Repeated sliding on the same track smoothed the surface and decreased the kinetic friction coefficient significantly. The orientation of the blocks during the sliding had no effect on the friction coefficient. The obtained data are compared with existing friction models.

Original languageEnglish
Title of host publicationICE RESEARCH FOR A SUSTAINABLE ENVIRONMENT, VOLS I & II
EditorsZ Li, P Lu
Pages65-77
Number of pages13
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
EventInternational Association for Hydro-Environment Engineering and Research International Symposium on Ice - Dalian, China
Duration: 11 Jun 201215 Jun 2012
Conference number: 21

Conference

ConferenceInternational Association for Hydro-Environment Engineering and Research International Symposium on Ice
Abbreviated titleIAHR-ICE
CountryChina
CityDalian
Period11/06/201215/06/2012

Cite this