3D Mapping of deformation in an unconsolidated sand: A micro mechanical study
This paper presents a study of 3D deformation process in a dry packing of Ottawa sand. X-ray microtomography is used to acquire scans of a triaxial test of the sample at five axial stress levels. Using 3D image analysis we are able to resolve particle scale features. Particle tracking combined with...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
SEG
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/38302 |
| _version_ | 1848755283525894144 |
|---|---|
| author | Saadatfar, M. Francois, N. Arad, A. Madadi, Mahyar Cruikshank, R. Alizadeh, M. Sheppard, A. Kingston, A. Limay, A. Senden, T. Knackstedt, M. |
| author2 | SEG |
| author_facet | SEG Saadatfar, M. Francois, N. Arad, A. Madadi, Mahyar Cruikshank, R. Alizadeh, M. Sheppard, A. Kingston, A. Limay, A. Senden, T. Knackstedt, M. |
| author_sort | Saadatfar, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents a study of 3D deformation process in a dry packing of Ottawa sand. X-ray microtomography is used to acquire scans of a triaxial test of the sample at five axial stress levels. Using 3D image analysis we are able to resolve particle scale features. Particle tracking combined with finite element simulations reveals that the rotational transformation of particles is one of the primary mechanisms of elastic energy dissipation at the grain scale. By analysing grain contact orientation, we show that stress induced anisotropy is spatially correlated to the compressional elastic wave. |
| first_indexed | 2025-11-14T08:53:51Z |
| format | Conference Paper |
| id | curtin-20.500.11937-38302 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:53:51Z |
| publishDate | 2012 |
| publisher | SEG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-383022018-12-14T00:55:33Z 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study Saadatfar, M. Francois, N. Arad, A. Madadi, Mahyar Cruikshank, R. Alizadeh, M. Sheppard, A. Kingston, A. Limay, A. Senden, T. Knackstedt, M. SEG tomography finite element wave propagation elastic This paper presents a study of 3D deformation process in a dry packing of Ottawa sand. X-ray microtomography is used to acquire scans of a triaxial test of the sample at five axial stress levels. Using 3D image analysis we are able to resolve particle scale features. Particle tracking combined with finite element simulations reveals that the rotational transformation of particles is one of the primary mechanisms of elastic energy dissipation at the grain scale. By analysing grain contact orientation, we show that stress induced anisotropy is spatially correlated to the compressional elastic wave. 2012 Conference Paper http://hdl.handle.net/20.500.11937/38302 10.1190/segam2012-1263.1 SEG restricted |
| spellingShingle | tomography finite element wave propagation elastic Saadatfar, M. Francois, N. Arad, A. Madadi, Mahyar Cruikshank, R. Alizadeh, M. Sheppard, A. Kingston, A. Limay, A. Senden, T. Knackstedt, M. 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title | 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title_full | 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title_fullStr | 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title_full_unstemmed | 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title_short | 3D Mapping of deformation in an unconsolidated sand: A micro mechanical study |
| title_sort | 3d mapping of deformation in an unconsolidated sand: a micro mechanical study |
| topic | tomography finite element wave propagation elastic |
| url | http://hdl.handle.net/20.500.11937/38302 |