Strengthening ice through cyclic loading

New experiments reveal that the flexural strength of fresh water, columnar-grained ice loaded normal to the columns may be increased by about a factor of two upon reversed cyclic loading at a frequency of ~0.1 Hz at stress amplitudes of 1.3–2.6 MPa. The effect is explained in terms of a reduction in...

Full description

Bibliographic Details
Published in:Journal of Glaciology
Main Authors: DANIEL ILIESCU, ANDRII MURDZA, ERLAND M. SCHULSON, CARL E. RENSHAW
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press 2017
Subjects:
ice engineering
ice physics
ice rheology
Environmental sciences
GE1-350
Meteorology. Climatology
QC851-999
Journal of Glaciology
Online Access:https://doi.org/10.1017/jog.2017.32
https://doaj.org/article/4e27d5a08de443f5baa1b0a85f19d793
Description
Summary:New experiments reveal that the flexural strength of fresh water, columnar-grained ice loaded normal to the columns may be increased by about a factor of two upon reversed cyclic loading at a frequency of ~0.1 Hz at stress amplitudes of 1.3–2.6 MPa. The effect is explained in terms of a reduction in deformation-induced stress concentration through the activation of grain boundary sliding, which is evident through boundary decohesion.

Similar Items