Strain field evolution at the ductile-to-brittle transition: a case study on ice

Chauve, Thomas; Montagnat, Maurine; Lachaud, Cedric; Georges, David; Vacher, Pierre

doi:https://doi.org/10.5194/se-8-943-2017

Articles | Volume 8, issue 5

https://doi.org/10.5194/se-8-943-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Analysis of deformation microstructures and mechanisms on...

https://doi.org/10.5194/se-8-943-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 5

Research article

|

18 Sep 2017

Research article |

| 18 Sep 2017

Strain field evolution at the ductile-to-brittle transition: a case study on ice

Thomas Chauve, Maurine Montagnat, Cedric Lachaud, David Georges, and Pierre Vacher

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Final revised paper (published on 18 Sep 2017)
Preprint (discussion started on 17 Mar 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Reviewer’s comments on the MS, entitled: ”Strain heterogeneities at the ductile to brittle transition; a case study on ice”, by C. Thomas, M. Montagnat, L. Cedric, G. David and V. Pierre', Anonymous Referee #1, 21 Apr 2017
- AC1: 'Response to reviewer 1 comments', Maurine Montagnat, 20 Jun 2017
RC2: 'Interactive comment on “Strain heterogeneities at the ductile to brittle transition ; a case study on ice.” by Chauve Thomas et al.', Anonymous Referee #2, 14 May 2017
- AC2: 'Responses to reviewer 2 comments', Maurine Montagnat, 20 Jun 2017

Short summary

For the first time, digital image correlation was used to follow strain field development and evolution during micro-cracking, at the ductile-to-brittle transition in polycrystalline ice. Owing to the high-temperature conditions of the tests, dynamic recrystallization mechanisms (nucleation and sub-grain rotation) efficiently participate in the stress redistribution during and after crack opening, and even lead to local crack closure.