Articles | Volume 12, issue 9
Research article
23 Sep 2021
Research article |  | 23 Sep 2021

Micromechanisms leading to shear failure of Opalinus Clay in a triaxial test: a high-resolution BIB–SEM study

Lisa Winhausen, Jop Klaver, Joyce Schmatz, Guillaume Desbois, Janos L. Urai, Florian Amann, and Christophe Nussbaum


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on se-2021-39', Anonymous Referee #1, 24 May 2021
    • AC1: 'Reply on RC1', Lisa Winhausen, 14 Jul 2021
    • AC2: 'Reply on RC1', Lisa Winhausen, 14 Jul 2021
  • RC2: 'Comment on se-2021-39', Ben Laurich, 03 Jun 2021
    • AC3: 'Reply on RC2', Lisa Winhausen, 14 Jul 2021
  • RC3: 'Comment on se-2021-39', Anonymous Referee #3, 17 Jun 2021
    • AC4: 'Reply on RC3', Lisa Winhausen, 14 Jul 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Lisa Winhausen on behalf of the Authors (28 Jul 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (06 Aug 2021) by Florian Fusseis
ED: Publish as is (08 Aug 2021) by Federico Rossetti(Executive Editor)
Short summary
An experimentally deformed sample of Opalinus Clay (OPA), which is being considered as host rock for nuclear waste in Switzerland, was studied by electron microscopy to image deformation microstructures. Deformation localised by forming micrometre-thick fractures. Deformation zones show dilatant micro-cracking, granular flow and bending grains, and pore collapse. Our model, with three different stages of damage accumulation, illustrates microstructural deformation in a compressed OPA sample.