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Shear lid motion in DEM shear calibration and the effect of particle rearrangement on the internal friction angle

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F22%3A10250780" target="_blank" >RIV/61989100:27350/22:10250780 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989100:27730/22:10250780

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S0032591022003114" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0032591022003114</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.powtec.2022.117417" target="_blank" >10.1016/j.powtec.2022.117417</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Shear lid motion in DEM shear calibration and the effect of particle rearrangement on the internal friction angle

  • Original language description

    Shear cell tests are now commonly applied in particulate calibration procedures for the discrete element method. Usually, only the shear stresses at the shear plane in the particle bed are examined in short-time instances. This work aimed to find the regularities between the internal friction angle, the vertical position of the shear lid, and the rearrangements of particles in the layers during the shear test with the time instance duration of tens to hundreds of seconds. The Schulze RST Ring Shear Tester was used to compare real experiments to numerical DEM models of non-cohesive materials. The shear tests were investigated for different contact models and DEM input parameters. We also simultaneously monitored the overall specimen stiffness, material dilatancy during calibration, and shear stress. Particle bed stiffness increases with increasing shear modulus and coefficient of static friction for two contact models. The internal friction angle, which is a bulk property of the material determined by a set of particle properties, determines the ability (or resistance) to make displacements of rigid non-deformable particles in the shear testing process. The angle of the resultant of the vector of particle motion in space from the horizontal plane correlates with the angle of internal friction (at each location of the shear cell).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2022

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Powder technology

  • ISSN

    0032-5910

  • e-ISSN

    1873-328X

  • Volume of the periodical

    403

  • Issue of the periodical within the volume

    May 2022

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    13

  • Pages from-to

    117417

  • UT code for WoS article

    000798215100003

  • EID of the result in the Scopus database

    2-s2.0-85129424812