| Автор | Forsberg, F |
| Автор | Siviour, C R |
| Дата выпуска | 2009-09-01 |
| dc.description | Understanding the displacement of granular beds under compaction is important for a range of industrial, geological and civil engineering applications. Such materials exhibit inhomogeneous internal displacements including strain localization, which mean that a method for the in situ evaluation of internal 3D displacement fields at high spatial resolutions would be a major development. This paper presents results from the compaction of a cylindrical bed of sugar, with diameter 7.0 mm and height 8.2 mm, using x-ray microtomography to evaluate the internal structure and digital volume correlation to calculate 3D displacement information from these data. In contrast to previous studies, which generally track a small number of marker particles, the research here uses the natural structure of the sugar to provide a random pattern for 3D image correlation, allowing full-field information to be captured. The results show good agreement when compared with a well-established 2D image correlation technique; moreover, they indicate structural features associated with deformation of granular materials that would not necessarily be observed in a 2D slice. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2009 IOP Publishing Ltd |
| Название | 3D deformation and strain analysis in compacted sugar using x-ray microtomography and digital volume correlation |
| Тип | paper |
| DOI | 10.1088/0957-0233/20/9/095703 |
| Electronic ISSN | 1361-6501 |
| Print ISSN | 0957-0233 |
| Журнал | Measurement Science and Technology |
| Том | 20 |
| Первая страница | 95703 |
| Последняя страница | 95710 |
| Аффилиация | Forsberg, F; Division of Experimental Mechanics, Department of Applied Physics and Mechanical Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden |
| Аффилиация | Siviour, C R; Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK |
| Выпуск | 9 |
