Articles | Volume 13, issue 5
Research article
16 May 2022
Research article |  | 16 May 2022

Failure mode transition in Opalinus Clay: a hydro-mechanical and microstructural perspective

Lisa Winhausen, Kavan Khaledi, Mohammadreza Jalali, Janos L. Urai, and Florian Amann


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on se-2022-19', Thomas Blenkinsop, 22 Feb 2022
    • AC1: 'Reply on RC1', Lisa Winhausen, 26 Apr 2022
  • RC2: 'Comment on se-2022-19', Mike Chandler, 06 Mar 2022
    • AC2: 'Reply on RC2', Lisa Winhausen, 26 Apr 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Lisa Winhausen on behalf of the Authors (26 Apr 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (26 Apr 2022) by David Healy
ED: Publish as is (26 Apr 2022) by Federico Rossetti (Executive editor)
AR by Lisa Winhausen on behalf of the Authors (27 Apr 2022)
Short summary
Triaxial compression tests at different effective stresses allow for analysing the deformation behaviour of Opalinus Clay, the potential host rock for nuclear waste in Switzerland. We conducted microstructural investigations of the deformed samples to relate the bulk hydro-mechanical behaviour to the processes on the microscale. Results show a transition from brittle- to more ductile-dominated deformation. We propose a non-linear failure envelop associated with the failure mode transition.