Propagating compaction bands in confined compression of snow

Barraclough T, Blackford J, Liebenstein S, Sandfeld S, Stratford T, Weinlaender G, Zaiser M (2016)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2016


DOI: 10.1038/nphys3966


Some materials are strong in response to a slowly applied deformation, yet weak when subject to rapid deformations—a materials property known as strain-rate softening. Snow exhibits such behaviour: it is comparatively strong at low deformation rates, where it is quasi-plastic, but weak at high rates, where it deforms in a quasi-brittle manner. During deformation, strain-rate-softening materials ranging from metals to micellar systems exhibit complex spatio-temporal deformation patterns, including regular or chaotic deformation-rate oscillations and travelling deformation waves. Here we report a systematic investigation of such phenomena in snow and show that snow can deform with the formation and propagation of localized deformation bands accompanied by oscillations of the driving force. We propose a model that accounts for these observations. Our findings demonstrate that in snow, strain localization can occur even in initially homogeneous samples deforming under homogeneous loads.

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Barraclough, T., Blackford, J., Liebenstein, S., Sandfeld, S., Stratford, T., Weinlaender, G., & Zaiser, M. (2016). Propagating compaction bands in confined compression of snow. Nature Physics.


Barraclough, Thomas, et al. "Propagating compaction bands in confined compression of snow." Nature Physics (2016).

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