Discrete element modeling of free-standing wire-reinforced jammed granular columns
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The use of fiber reinforcement in granular media is known to increase the cohesion and therefore the strength of the material. However, a new approach, based on layer-wise deployment of predetermined patterns of the fiber reinforcement has led self-confining and free-standing jammed structures to become viable. We have developed a novel model to simulate fiber-reinforced granular materials, which takes into account irregular particles and wire elasticity and apply it to study the stability of unconfined jammed granular columns.
KeywordsGranular matter Fiber Discrete element method Friction Polyhedral particles Jamming
We acknowledge financial support from the ETH Research Grant “Robotic Fabrication of Jammed Architectural Structures” ETHIIRA Grant No. ETH-04 14-2 as well as from the ERC Advanced grant number FP7-319968 FlowCCS of the European Research Council. We also want to acknowledge the group of Gramazio/Kohler for the support and for the fruitful discussions, as well as Petrus Aejmelaeus-Lindström for valuable insides and Gergana Rusenova for helping with the experiments.
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Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
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