Observations of Stress‐Strain in Drifting Sea Ice at Floe Scale
Abstract
The mechanical deformation of sea ice has substantial influence over large‐scale (e.g., >10 km) ice properties, such as the ice thickness distribution, as well as small‐scale (e.g., 2 heterogeneous domain by observing the stress‐strain field in an ice floe at resolutions required to capture pre‐fracture elastic strains. The combination of instruments deployed allow a detailed view of the formation, propagation, parting, and subsequent shearing of a fracture in natural sea ice, providing field evidence of modes of failure in compressive shear. The ability of this system to capture strain concentration zones and to detect initial fracture hours prior to lead formation indicates the potential for predicting areas at high risk for fracture in an on‐ice operational setting.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 01, 2022
- Source ID
- 10.1029/2021jc017761
Entities
People
- Andrew R. Mahoney
- Arnold Song
- Chris Polashenski
- Julie Parno
- Matthew Parno
- Patricia Nelsen
Organizations
- Dartmouth College
- Office of Naval Research
- United States Army
- United States Army Corps of Engineers
- University of Alaska System