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Title: Linear Response Theory for Hard and Soft Glassy Materials

Abstract

Despite qualitative differences in their underlying physics, both hard and soft glassy materials exhibit almost identical linear rheological behaviors. We show that these nearly universal properties emerge naturally in a shear-transformation-zone (STZ) theory of amorphous plasticity, extended to include a broad distribution of internal thermal-activation barriers. The principal features of this barrier distribution are predicted by nonequilibrium, effective-temperature thermodynamics. Our theoretical loss modulus G{double_prime}({omega}) has a peak at the {alpha} relaxation rate, and a power law decay of the form {omega}{sup -{zeta}} for higher frequencies, in quantitative agreement with experimental data.

Authors:
 [1];  [2]
  1. University of California, Santa Barbara
  2. Weizmann Institute of Science, Rehovot, Israel
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1016051
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 106; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DECAY; DISTRIBUTION; PHYSICS; PLASTICITY; RELAXATION; THERMODYNAMICS

Citation Formats

Langer, J., and Bouchbinder, Eran. Linear Response Theory for Hard and Soft Glassy Materials. United States: N. p., 2011. Web.
Langer, J., & Bouchbinder, Eran. Linear Response Theory for Hard and Soft Glassy Materials. United States.
Langer, J., and Bouchbinder, Eran. 2011. "Linear Response Theory for Hard and Soft Glassy Materials". United States.
@article{osti_1016051,
title = {Linear Response Theory for Hard and Soft Glassy Materials},
author = {Langer, J. and Bouchbinder, Eran},
abstractNote = {Despite qualitative differences in their underlying physics, both hard and soft glassy materials exhibit almost identical linear rheological behaviors. We show that these nearly universal properties emerge naturally in a shear-transformation-zone (STZ) theory of amorphous plasticity, extended to include a broad distribution of internal thermal-activation barriers. The principal features of this barrier distribution are predicted by nonequilibrium, effective-temperature thermodynamics. Our theoretical loss modulus G{double_prime}({omega}) has a peak at the {alpha} relaxation rate, and a power law decay of the form {omega}{sup -{zeta}} for higher frequencies, in quantitative agreement with experimental data.},
doi = {},
url = {https://www.osti.gov/biblio/1016051}, journal = {Physical Review Letters},
issn = {0031-9007},
number = ,
volume = 106,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}