| Naslov: | Influence of the virtual strain rate of noncohesive granular media on the discrete element method |
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| Avtorji: | ID Suzuki, Kiichi (Avtor)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Lastnik avtorskih pravic) |
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| Datoteke: |  Acta_geotechnica_Slovenica_2015_Suzuki_Influence_of_the_virtual_strain_rate_of_noncohesive_granular_media_on_the_discrete_element_method.pdf (690,97 KB)
MD5: 54BF052C085AABEE9EF34038FBB219FA
PID: 20.500.12556/dkum/047233d5-6ed4-49b2-a172-fffca940773d
 http://fgserver3.fg.um.si/journal-ags/2015-1/article-2.asp
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
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| Opis: | The discrete element method (DEM) is an alternative computational tool for augmenting laboratory experiments because of its advantages in detailing macro- and micro-mechanical information. However, it should be noted that the DEM does not usually consider the convergence for each time step, because of the necessity for a huge calculation time. In that case, it indicates that the uniqueness of the solution is not guaranteed, except in the case of a very small strain rate, even though the behavior looks qualitatively reasonable. At first, the influence of strain rate among numerically imaginary input parameters for a non-cohesive material was investigated for monotonic, biaxial shear tests. Then, new findings were obtained from the DEM simulations. Strain rate has a significant influence on the shear behavior, especially after the peak strength of dense specimens. A quasi-static steady state exists, not a static steady state. The “strong” fabric ratio is closely related to the stress ratio. The maximum slip coordination number occurs around the phase-transformation ratio and the shear band appears around the peak strength. |
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| Ključne besede: | discrete element method, DEM, induced anisotropy, quasi-static steady state, strain rate, uniqueness |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Leto izida: | 2015 |
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| Št. strani: | str. 17-24 |
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| Številčenje: | Letn. 12, št. 1 |
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| PID: | 20.500.12556/DKUM-70828  |
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| ISSN: | 1854-0171 |
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| UDK: | 550.3:624.131 |
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| COBISS.SI-ID: | 284321536 |
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| ISSN pri članku: | 1854-0171 |
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| NUK URN: | URN:SI:UM:DK:XFTZNTKB |
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| Avtorske pravice: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Datum objave v DKUM: | 14.06.2018 |
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| Število ogledov: | 1144 |
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| Število prenosov: | 239 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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