PMID- 17500760
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20070717
LR  - 20070515
IS  - 1539-3755 (Print)
IS  - 1539-3755 (Linking)
VI  - 75
IP  - 3 Pt 2
DP  - 2007 Mar
TI  - Athermal shear-transformation-zone theory of amorphous plastic deformation. II. 
      Analysis of simulated amorphous silicon.
PG  - 036108
AB  - In the preceding paper, we developed an athermal shear-transformation-zone (STZ) 
      theory of amorphous plasticity. Here we use this theory in an analysis of 
      numerical simulations of plasticity in amorphous silicon by Demkowicz and Argon 
      (DA). In addition to bulk mechanical properties, those authors observed internal 
      features of their deforming system that challenge our theory in important ways. 
      We propose a quasithermodynamic interpretation of their observations in which the 
      effective disorder temperature, generated by mechanical deformation well below 
      the glass temperature, governs the behavior of other state variables that fall in 
      and out of equilibrium with it. Our analysis points to a limitation of either the 
      step-strain procedure used by DA in their simulations, or the STZ theory in its 
      ability to describe rapid transients in stress-strain curves, or perhaps to both. 
      Once we allow for this limitation, we are able to bring our theoretical 
      predictions into accurate agreement with the simulations.
FAU - Bouchbinder, Eran
AU  - Bouchbinder E
AD  - Department of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, 
      Israel.
FAU - Langer, J S
AU  - Langer JS
FAU - Procaccia, Itamar
AU  - Procaccia I
LA  - eng
PT  - Journal Article
DEP - 20070312
PL  - United States
TA  - Phys Rev E Stat Nonlin Soft Matter Phys
JT  - Physical review. E, Statistical, nonlinear, and soft matter physics
JID - 101136452
EDAT- 2007/05/16 09:00
MHDA- 2007/05/16 09:01
CRDT- 2007/05/16 09:00
PHST- 2006/11/02 00:00 [received]
PHST- 2007/01/01 00:00 [revised]
PHST- 2007/05/16 09:00 [pubmed]
PHST- 2007/05/16 09:01 [medline]
PHST- 2007/05/16 09:00 [entrez]
AID - 10.1103/PhysRevE.75.036108 [doi]
PST - ppublish
SO  - Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Mar;75(3 Pt 2):036108. doi: 
      10.1103/PhysRevE.75.036108. Epub 2007 Mar 12.