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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Cited articles

Akin, S. and Kovscek, A. R.: Computed tomography in petroleum engineering research, Geological Society London Special Publications, 01/2003, 23–38, 2003.
Ambos, E., Brunke, O., Neuber, D., Lux, H., Besser, W., and Ziesemann, M.: Porosity and Dimensional 3-D Process Control, Fast Computed Tomography in High Pressure Die Casting, Materials Evaluation, 978–984, 2014.
Ashi, J.: Computed tomography scan image analysis of sediments, in: Proceedings of the ocean drilling program, scientific results, edited by: Shipley, T. H., Ogawa, Y., Blum, P., and Bahr, J. M., 156, 151–159, 1997.
Bésuelle, P., Viggiani, G., Lenoir, N., Desrues, J., and Bornert, M. : X-ray Micro CT for Studying Strain Localization in Clay Rocks under Triaxial Compression, in Advances in X-ray Tomography for Geomaterials, edited by: Desrues, J., Viggiani, G., and Bésuelle, P., ISTE, London, UK,, 2006.
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.