On the micro mechanics of one-dimensional normal compression
Discrete-element modelling has been used to investigate the micro mechanics of one-dimensional compression. One-dimensional compression is modelled in three dimensions using an oedometer and a large number of particles, and without the use of agglomerates. The fracture of a particle is governed by t...
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| Format: | Article |
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Thomas Telford ICE Publishing
2015
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| Online Access: | https://eprints.nottingham.ac.uk/1959/ |
| _version_ | 1848790692515545088 |
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| author | McDowell, Glenn R. de Bono, John P. |
| author_facet | McDowell, Glenn R. de Bono, John P. |
| author_sort | McDowell, Glenn R. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Discrete-element modelling has been used to investigate the micro mechanics of one-dimensional compression. One-dimensional compression is modelled in three dimensions using an oedometer and a large number of particles, and without the use of agglomerates. The fracture of a particle is governed by the octahedral shear stress within the particle due to the multiple contacts and a Weibull distribution of strengths. Different fracture mechanisms are considered, and the influence of the distribution of fragments produced for each fracture on the global particle size distribution and the slope of the normal compression line is investigated. Using the discrete-element method, compression is related to the evolution of a fractal distribution of particles. The compression index is found to be solely a function of the strengths of the particles as a function of size. |
| first_indexed | 2025-11-14T18:16:39Z |
| format | Article |
| id | nottingham-1959 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:16:39Z |
| publishDate | 2015 |
| publisher | Thomas Telford ICE Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-19592020-05-04T20:07:23Z https://eprints.nottingham.ac.uk/1959/ On the micro mechanics of one-dimensional normal compression McDowell, Glenn R. de Bono, John P. Discrete-element modelling has been used to investigate the micro mechanics of one-dimensional compression. One-dimensional compression is modelled in three dimensions using an oedometer and a large number of particles, and without the use of agglomerates. The fracture of a particle is governed by the octahedral shear stress within the particle due to the multiple contacts and a Weibull distribution of strengths. Different fracture mechanisms are considered, and the influence of the distribution of fragments produced for each fracture on the global particle size distribution and the slope of the normal compression line is investigated. Using the discrete-element method, compression is related to the evolution of a fractal distribution of particles. The compression index is found to be solely a function of the strengths of the particles as a function of size. Thomas Telford ICE Publishing 2015-09 Article PeerReviewed McDowell, Glenn R. and de Bono, John P. (2015) On the micro mechanics of one-dimensional normal compression. Geotechnique, 63 (11). pp. 895-908. ISSN 1751-7656 compressibility ; discrete-element modelling ; fractals ; particle crushing/crushability ; particle-scale behaviour http://www.icevirtuallibrary.com/content/article/10.1680/geot.12.P.041;jsessionid=4l480pd9cff7u.x-telford-live-01 doi:10.1680/geot.12.P.041 doi:10.1680/geot.12.P.041 |
| spellingShingle | compressibility ; discrete-element modelling ; fractals ; particle crushing/crushability ; particle-scale behaviour McDowell, Glenn R. de Bono, John P. On the micro mechanics of one-dimensional normal compression |
| title | On the micro mechanics of one-dimensional normal compression |
| title_full | On the micro mechanics of one-dimensional normal compression |
| title_fullStr | On the micro mechanics of one-dimensional normal compression |
| title_full_unstemmed | On the micro mechanics of one-dimensional normal compression |
| title_short | On the micro mechanics of one-dimensional normal compression |
| title_sort | on the micro mechanics of one-dimensional normal compression |
| topic | compressibility ; discrete-element modelling ; fractals ; particle crushing/crushability ; particle-scale behaviour |
| url | https://eprints.nottingham.ac.uk/1959/ https://eprints.nottingham.ac.uk/1959/ https://eprints.nottingham.ac.uk/1959/ |