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Conference Paper: The role of particle breakage in soil creep
| Title | The role of particle breakage in soil creep |
|---|---|
| Authors | |
| Issue Date | 2011 |
| Citation | The 2nd International FLAC/DEM Symposium on Numerical Modeling, Melbourne, Australia, 14-16 February 2011. How to Cite? |
| Abstract | Creep of platelets clay or sand under high stress is mostly derived from particle breakage. This paper investigates the hypothesis for the mechanism of soil creep, which is crack growth induced particle breakage. A mathematical model which is able to simulate the effects of crack growth leading to the crushing of grains under high stress was discussed in Kwok et al. (2008). This DEM technique was then applied to the simulation of creep in a triaxial test with 378 breakable grains. The DEM results show that crack growth can lead to softening of samples with volumetric contraction due to grain breakage accompanying dilation due to shearing. Creep induced failure might be anticipated when the axial strain reaches about 5%. |
| Description | Session 12: Coupled & Time-Dependent Processes |
| Persistent Identifier | http://hdl.handle.net/10722/140693 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Kwok, CY | en_US |
| dc.contributor.author | Bolton, MD | en_US |
| dc.date.accessioned | 2011-09-23T06:17:45Z | - |
| dc.date.available | 2011-09-23T06:17:45Z | - |
| dc.date.issued | 2011 | en_US |
| dc.identifier.citation | The 2nd International FLAC/DEM Symposium on Numerical Modeling, Melbourne, Australia, 14-16 February 2011. | en_US |
| dc.identifier.uri | http://hdl.handle.net/10722/140693 | - |
| dc.description | Session 12: Coupled & Time-Dependent Processes | - |
| dc.description.abstract | Creep of platelets clay or sand under high stress is mostly derived from particle breakage. This paper investigates the hypothesis for the mechanism of soil creep, which is crack growth induced particle breakage. A mathematical model which is able to simulate the effects of crack growth leading to the crushing of grains under high stress was discussed in Kwok et al. (2008). This DEM technique was then applied to the simulation of creep in a triaxial test with 378 breakable grains. The DEM results show that crack growth can lead to softening of samples with volumetric contraction due to grain breakage accompanying dilation due to shearing. Creep induced failure might be anticipated when the axial strain reaches about 5%. | - |
| dc.language | eng | en_US |
| dc.relation.ispartof | International FLAC/DEM Symposium on Numerical Modeling | en_US |
| dc.title | The role of particle breakage in soil creep | en_US |
| dc.type | Conference_Paper | en_US |
| dc.identifier.email | Kwok, CY: fkwok8@hku.hk | en_US |
| dc.identifier.authority | Kwok, CY=rp01344 | en_US |
| dc.identifier.hkuros | 192430 | en_US |
| dc.description.other | The 2nd International FLAC/DEM Symposium on Numerical Modeling, Melbourne, Australia, 14-16 February 2011. | - |