Regular Article - Flowing Matter
Inversion of force lines in fiber-reinforced jammed granular material
ETH Zurich, Computational Physics for Engineering Materials, Institute for Building Materials, Stefano-Franscini-Platz 3, 8093, Zurich, Switzerland
2 ETH Zurich, Complex Materials and Systems, Institute for Building Materials, Stefano-Franscini-Platz 3, 8093, Zurich, Switzerland
3 PMMH, ESPCI Paris, 7 quai St. Bernard, 75005, Paris, France
4 Departamento de Física, Universidade do Ceará, 60451-970, Fortaleza, Brazil
Accepted: 10 March 2021
Published online: 24 April 2021
Freestanding columns, built out of nothing but loose gravel and continuous strings can be stable even at several meters in height and withstand vertical loads high enough to severely fragment grains of the column core. We explain this counter-intuitive behavior through dynamic simulations with polyhedral rigid particles and elastic wire chains. We evaluate the fine structure of the particle contact networks, as well as confining forces and reveal fundamental intrinsic differences to the well-studied case of confining silos.
© The Author(s) 2021
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