Discrete element modelling and cavity expansion analysis of cone penetration testing
This paper uses the discrete element method (DEM) in three dimensions to simulate cone penetration testing (CPT) of granular materials in a calibration chamber. Several researchers have used different numerical techniques such as strain path methods and finite element methods to study CPT problems....
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| Format: | Article |
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Springer Verlag
2015
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| Online Access: | https://eprints.nottingham.ac.uk/33342/ |
| _version_ | 1848794609319149568 |
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| author | Falagush, Omar McDowell, Glenn R. Yu, Hai-Sui de Bono, John P. |
| author_facet | Falagush, Omar McDowell, Glenn R. Yu, Hai-Sui de Bono, John P. |
| author_sort | Falagush, Omar |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper uses the discrete element method (DEM) in three dimensions to simulate cone penetration testing (CPT) of granular materials in a calibration chamber. Several researchers have used different numerical techniques such as strain path methods and finite element methods to study CPT problems. The DEM is a useful alternative tool for studying cone penetration problems because of its ability to provide micro mechanical insight into the behaviour of granular materials and cone penetration resistance. A 30° chamber segment and a particle refinement method were used for the simulations. Giving constant mass to each particle in the sample was found to reduce computational time significantly, without significantly affecting tip resistance. The effects of initial sample conditions and particle friction coefficient on tip resistance are investigated and found to have an important effect on the tip resistance. Biaxial test simulations using DEM are conducted to obtain the basic granular material properties for obtaining CPT analytical solutions based on continuum mechanics. Macro properties of the samples for different input micro parameters are presented and used to obtain the analytical CPT results. Comparison between the numerical simulations and analytical solutions show good agreement. |
| first_indexed | 2025-11-14T19:18:55Z |
| format | Article |
| id | nottingham-33342 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:18:55Z |
| publishDate | 2015 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-333422020-05-04T17:11:03Z https://eprints.nottingham.ac.uk/33342/ Discrete element modelling and cavity expansion analysis of cone penetration testing Falagush, Omar McDowell, Glenn R. Yu, Hai-Sui de Bono, John P. This paper uses the discrete element method (DEM) in three dimensions to simulate cone penetration testing (CPT) of granular materials in a calibration chamber. Several researchers have used different numerical techniques such as strain path methods and finite element methods to study CPT problems. The DEM is a useful alternative tool for studying cone penetration problems because of its ability to provide micro mechanical insight into the behaviour of granular materials and cone penetration resistance. A 30° chamber segment and a particle refinement method were used for the simulations. Giving constant mass to each particle in the sample was found to reduce computational time significantly, without significantly affecting tip resistance. The effects of initial sample conditions and particle friction coefficient on tip resistance are investigated and found to have an important effect on the tip resistance. Biaxial test simulations using DEM are conducted to obtain the basic granular material properties for obtaining CPT analytical solutions based on continuum mechanics. Macro properties of the samples for different input micro parameters are presented and used to obtain the analytical CPT results. Comparison between the numerical simulations and analytical solutions show good agreement. Springer Verlag 2015-06-10 Article PeerReviewed Falagush, Omar, McDowell, Glenn R., Yu, Hai-Sui and de Bono, John P. (2015) Discrete element modelling and cavity expansion analysis of cone penetration testing. Granular Matter, 17 (4). pp. 483-495. ISSN 1434-7636 Discrete element method DEM Numerical modelling Cavity expansion CPT http://link.springer.com/article/10.1007%2Fs10035-015-0570-4 doi:10.1007/s10035-015-0570-4 doi:10.1007/s10035-015-0570-4 |
| spellingShingle | Discrete element method DEM Numerical modelling Cavity expansion CPT Falagush, Omar McDowell, Glenn R. Yu, Hai-Sui de Bono, John P. Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title | Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title_full | Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title_fullStr | Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title_full_unstemmed | Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title_short | Discrete element modelling and cavity expansion analysis of cone penetration testing |
| title_sort | discrete element modelling and cavity expansion analysis of cone penetration testing |
| topic | Discrete element method DEM Numerical modelling Cavity expansion CPT |
| url | https://eprints.nottingham.ac.uk/33342/ https://eprints.nottingham.ac.uk/33342/ https://eprints.nottingham.ac.uk/33342/ |