Phys. Rev. Lett. 98, 185505 (2007) [4 pages]Evaluation of the Disorder Temperature and Free-Volume Formalisms via Simulations of Shear Banding in Amorphous SolidsReceived 15 September 2006; published 4 May 2007 Molecular dynamics simulations of shear band development over 1000% strain in simple shear are used to test whether the local plastic strain rate is proportional to exp(-1/χ), where χ is a dimensionless quantity related to the disorder temperature or free volume that characterizes the structural state of the glass. Scaling is observed under the assumption that χ is linearly related to the local potential energy per atom. We calculate the potential energy per atom corresponding to absolute zero disorder temperature and the energy needed to create a shear transformation zone. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.185505
DOI:
10.1103/PhysRevLett.98.185505
PACS:
62.20.Fe, 61.43.−j
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