Articles | Volume 7, issue 4
Method article
03 Aug 2016
Method article |  | 03 Aug 2016

X-ray computed tomography investigation of structures in Opalinus Clay from large-scale to small-scale after mechanical testing

Annette Kaufhold, Matthias Halisch, Gerhard Zacher, and Stephan Kaufhold


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Short summary
The OPA material has been intensively studied by a variety of multiple scale and non-destructive 3-D X-ray CT investigations, following a consequent top-down approach to identify specific regions of interest. According to the mechanical experiment, it has been observed that the shear failure is located in a clay-rich area. Within the intersecting area of the two main fractures, a so called mylonitic zone with a particle reduction was observed on the open shear failure using CT and SEM techniques.