Compaction of quasi-one-dimensional elastoplastic materials

M. Reza Shaebani (), Javad Najafi, Ali Farnudi, Daniel Bonn () and Mehdi Habibi ()
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M. Reza Shaebani: Saarland University
Javad Najafi: Saarland University
Ali Farnudi: Institute for Advanced Studies in Basic Sciences
Daniel Bonn: Van der Waals-Zeeman Institute, University of Amsterdam
Mehdi Habibi: Institute for Advanced Studies in Basic Sciences

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: Abstract Insight into crumpling or compaction of one-dimensional objects is important for understanding biopolymer packaging and designing innovative technological devices. By compacting various types of wires in rigid confinements and characterizing the morphology of the resulting crumpled structures, here, we report how friction, plasticity and torsion enhance disorder, leading to a transition from coiled to folded morphologies. In the latter case, where folding dominates the crumpling process, we find that reducing the relative wire thickness counter-intuitively causes the maximum packing density to decrease. The segment size distribution gradually becomes more asymmetric during compaction, reflecting an increase of spatial correlations. We introduce a self-avoiding random walk model and verify that the cumulative injected wire length follows a universal dependence on segment size, allowing for the prediction of the efficiency of compaction as a function of material properties, container size and injection force.

Date: 2017
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DOI: 10.1038/ncomms15568

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