# Rigidity percolation control of the brittle-ductile transition in disordered networks

@article{Berthier2019RigidityPC,
title={Rigidity percolation control of the brittle-ductile transition in disordered networks},
author={Estelle Berthier and Jonathan E. Kollmer and Silke Henkes and Kuang Liu and J. M. Schwarz and Karen E. Daniels},
journal={Physical Review Materials},
year={2019}
}
In ordinary solids, material disorder is known to increase the size of the process zone in which stress concentrates at the crack tip, causing a transition from localized to diffuse failure. Here, we report experiments on disordered 2D lattices, derived from frictional particle packings, in which the mean coordination number $\langle z \rangle$ of the underlying network provides a similar control. Our experiments show that tuning the connectivity of the network provides access to a range of… Expand
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