Abstract
In this work we employ x-ray tomography, 3D digital image analysis and 3D-volumetric digital image correlation techniques to characterize localized deformation phenomena in sandstone. The specimens considered have been deformed in triaxial compression under a range of confining pressures (20-190MPa). Shear or compaction bands were observed, at low and higher confinement respectively. X-ray tomography images have been acquired before and after loading (unconfined) at different spatial resolutions (30 and 90 µm voxel size). The combination of both x-ray tomography and 3D DIC provides insights into the geometry and mechanisms of the localized features.
| Original language | English |
|---|---|
| Title of host publication | Advances in computer tomography for geomaterials |
| Subtitle of host publication | GeoX 2010 |
| Editors | Allen H. Reed, Khalid A. Alshibli |
| Place of Publication | London |
| Publisher | Wiley |
| Pages | 59-66 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781118557723 |
| ISBN (Print) | 978-1-84821-179-7, 1-84821-179-1 |
| DOIs | |
| Publication status | Published - Feb 2010 |
| Event | 3rd International Workshop on X-Ray CT for Geomaterials - New Orleans, United States Duration: 28 Feb 2010 → 3 Mar 2010 |
Conference
| Conference | 3rd International Workshop on X-Ray CT for Geomaterials |
|---|---|
| Abbreviated title | GeoX 2010 |
| Country/Territory | United States |
| City | New Orleans |
| Period | 28/02/10 → 3/03/10 |
Keywords
- sandstone
- Localization
- Shear bands
- Compaction bands
- X-ray tomography
- 3D digital image correlation