Effect of Loading Rate on Sand Pile Failure: 2D DEM Simulation
Discrete element method (DEM) is a widely used simulation tool to model physical behaviour of granular materials. In this study 2D DEM simulation has been used to simulate the failure of a sand pile loaded at the crest. The model has been calibrated and validated using experimental force-displacemen...
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| Veröffentlicht in: | Geotechnical and geological engineering 2017-04, Vol.35 (2), p.889-896 |
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| container_title | Geotechnical and geological engineering |
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| creator | Khanal, Manoj Elmouttie, Marc Poulsen, Brett Olsson, Andrew Adhikary, Deepak |
| description | Discrete element method (DEM) is a widely used simulation tool to model physical behaviour of granular materials. In this study 2D DEM simulation has been used to simulate the failure of a sand pile loaded at the crest. The model has been calibrated and validated using experimental force-displacement behaviour, angle of repose and particle velocity profile. The effects of numerical loading rates on simulation results have been investigated. The calibrated DEM model showed that the selection of loading rate is crucial in simulating particle assembly behaviour. In the quasi-static state a small change in loading rate does not change the force-displacement behaviour of the model. However, the system becomes unstable and force-displacement behaviour of the granular assembly diverges from the quasi-static state when the loading rate is higher than the quasi-static loading rate. |
| doi_str_mv | 10.1007/s10706-016-0142-3 |
| format | Article |
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In this study 2D DEM simulation has been used to simulate the failure of a sand pile loaded at the crest. The model has been calibrated and validated using experimental force-displacement behaviour, angle of repose and particle velocity profile. The effects of numerical loading rates on simulation results have been investigated. The calibrated DEM model showed that the selection of loading rate is crucial in simulating particle assembly behaviour. In the quasi-static state a small change in loading rate does not change the force-displacement behaviour of the model. However, the system becomes unstable and force-displacement behaviour of the granular assembly diverges from the quasi-static state when the loading rate is higher than the quasi-static loading rate.</description><identifier>ISSN: 0960-3182</identifier><identifier>EISSN: 1573-1529</identifier><identifier>DOI: 10.1007/s10706-016-0142-3</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Angle of repose ; Assembly ; Civil Engineering ; Computer simulation ; Discrete element method ; Displacement ; Earth and Environmental Science ; Earth Sciences ; Geotechnical Engineering & Applied Earth Sciences ; Granular materials ; Hydrogeology ; Load distribution ; Loading rate ; Mathematical models ; Orbital velocity ; Piles ; Sand ; Simulation ; Technical Note ; Terrestrial Pollution ; Two dimensional models ; Velocity distribution ; Velocity profiles ; Waste Management/Waste Technology</subject><ispartof>Geotechnical and geological engineering, 2017-04, Vol.35 (2), p.889-896</ispartof><rights>Springer International Publishing Switzerland 2016</rights><rights>Geotechnical and Geological Engineering is a copyright of Springer, (2016). 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However, the system becomes unstable and force-displacement behaviour of the granular assembly diverges from the quasi-static state when the loading rate is higher than the quasi-static loading rate.</description><subject>Angle of repose</subject><subject>Assembly</subject><subject>Civil Engineering</subject><subject>Computer simulation</subject><subject>Discrete element method</subject><subject>Displacement</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Granular materials</subject><subject>Hydrogeology</subject><subject>Load distribution</subject><subject>Loading rate</subject><subject>Mathematical models</subject><subject>Orbital velocity</subject><subject>Piles</subject><subject>Sand</subject><subject>Simulation</subject><subject>Technical Note</subject><subject>Terrestrial Pollution</subject><subject>Two dimensional models</subject><subject>Velocity distribution</subject><subject>Velocity profiles</subject><subject>Waste Management/Waste Technology</subject><issn>0960-3182</issn><issn>1573-1529</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kMtKAzEUhoMoWKsP4C7gevTkMpPEhSC1VaGiWF2HZJqUKdNJTWYWvr0pI7hycfjh8F_gQ-iSwDUBEDeJgICqAHI4Tgt2hCakFKwgJVXHaAKqgoIRSU_RWUpbAKAVkAm6m3vv6h4Hj5fBrJtug99N73Do8Mp0a_zWtA4vTNMO0d1i-oAf5i941eyG1vRN6M7RiTdtche_OkWfi_nH7KlYvj4-z-6XhWFM9QVzXlTAKM9jvGSytpZ54AKk4s7asqRMWi8UKSvID25dZaV0tTOKEi4pm6KrsXcfw9fgUq-3YYhdntSUlkoSIkFkFxlddQwpRef1PjY7E781AX3ApEdMOmPSB0ya5QwdMyl7u42Lf83_h34A9vxnAA</recordid><startdate>20170401</startdate><enddate>20170401</enddate><creator>Khanal, Manoj</creator><creator>Elmouttie, Marc</creator><creator>Poulsen, Brett</creator><creator>Olsson, Andrew</creator><creator>Adhikary, Deepak</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>7UA</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20170401</creationdate><title>Effect of Loading Rate on Sand Pile Failure: 2D DEM Simulation</title><author>Khanal, Manoj ; 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| subjects | Angle of repose Assembly Civil Engineering Computer simulation Discrete element method Displacement Earth and Environmental Science Earth Sciences Geotechnical Engineering & Applied Earth Sciences Granular materials Hydrogeology Load distribution Loading rate Mathematical models Orbital velocity Piles Sand Simulation Technical Note Terrestrial Pollution Two dimensional models Velocity distribution Velocity profiles Waste Management/Waste Technology |
| title | Effect of Loading Rate on Sand Pile Failure: 2D DEM Simulation |
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