Microscopic Origins of Shear Strength in Packings Composed of Elongated Particles
type: Dataset
description: We investigate the rheology, force transmission and texture of granular materials composed of elongated particles by means of contact dynamics simulations. The particles have a rounded-cap rectangular (RCR) shape described by a single elongation parameter varying from 0 for a circular particle to 1 for an infinitely thin or long particle. We study the quasi-static behavior, structural and force anisotropies as a function of the elongation parameter for packings submitted to biaxial compression. The shear strength is found to increase linearly with this parameter whereas the solid fraction both at the initial isotropic state and in the critical state is nonmonotonous. We show that for these elongated particles a harmonic decomposition of the stress tensor provides a fairly good approximation of the internal state. Our data suggest that the increase of shear strength with reflects both enhanced friction mobilization and anisotropic particle orientation as the elongation of the particles increases.
issued: 2026-05-22T06:19:46.210426
language: en
modified: 2026-05-22T06:19:46.210433
contact point: Organization
  fn: CCSD
keyword: conference-papers
keyword: elongated-particles
keyword: fabric-properties
keyword: force-transmission
keyword: harmonic-decomposition
keyword: infoeu-reposemanticsconferenceobject
keyword: physmecamemaphysics-physicsmechanics-physicsmechanics-of-materials-physicsclass-ph
keyword: physmecasolidphysics-physicsmechanics-physicssolid-mechanics-physicsclass-ph
keyword: spimecamemaengineering-sciences-physicsmechanics-physicsmed-phmechanics-of-materials-phy
keyword: spimecasolidengineering-sciences-physicsmechanics-physicsmed-phsolid-mechanics-physicsc
landing page: Advances in bifurcation and degradation

Microscopic Origins of Shear Strength in Packings Composed of Elongated Particles
type: Distribution
format: HTML
issued: 2026-05-22T06:19:46.261649
modified: 2026-05-22T06:19:46.178924
access URL: https://hal.science/hal-00686728

test_moissonnage_selune
type: Agent