Discrete element investigation of rate effects on the asymptotic behaviour of granular materials

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Discrete element investigation of rate effects on the asymptotic behaviour of granular materials

Popis výsledku v původním jazyce

The effect of loading rate on the asymptotic behaviour of a granular material with permanent particles is investigated using discrete element method. The asymptotic states could uniquely be represented in terms of dimensionless inertial number I. For lowinertial numbers (I lower than 0.01 to 0.001), the asymptotic stress ratio is independent of I (and thus of loading rate and of mean stress). This agrees with observation on soils, showing critical state friction angle independent of mean stress. For low inertial numbers, the critical state line as well as the isotropic normal compression line have similar slope in the plane of void ratio vs. mean stress to the isotropic rebound line. This agrees with conclusions of other scientists, who suggest that particle crushing needs to be involved to represent more realistically the volumetric asymptotic response of granular material

Název v anglickém jazyce

Discrete element investigation of rate effects on the asymptotic behaviour of granular materials

Popis výsledku anglicky

The effect of loading rate on the asymptotic behaviour of a granular material with permanent particles is investigated using discrete element method. The asymptotic states could uniquely be represented in terms of dimensionless inertial number I. For lowinertial numbers (I lower than 0.01 to 0.001), the asymptotic stress ratio is independent of I (and thus of loading rate and of mean stress). This agrees with observation on soils, showing critical state friction angle independent of mean stress. For low inertial numbers, the critical state line as well as the isotropic normal compression line have similar slope in the plane of void ratio vs. mean stress to the isotropic rebound line. This agrees with conclusions of other scientists, who suggest that particle crushing needs to be involved to represent more realistically the volumetric asymptotic response of granular material

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Deformation Characteristics of Geomaterials

ISBN

90-5809-604-1

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

695-702

Název nakladatele

V. A. Rinaldi et al. (eds.) and IOS Press

Místo vydání

Netherlands

Místo konání akce

Buenos Aires, Argentina

Datum konání akce

15. 12. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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