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Effective Temperatures of a Driven System Near Jamming

Published

Author(s)

I K. Ono, C S. O'Hern, Stephen A. Langer, A J. Liu, S R. Nagel, D J. Durian

Abstract

Fluctuations in a model of a sheared, zero-temperature foam are studied numerically. Five different quantities that reduce to the true temperature in an equilibrium thermal system are calculated. All five have the same shear-rate dependence, and three have the same value. Near the onset of jamming, the relaxation time is the same function of these three temperatures in the sheared system as of the true temperature in an unsheared system. These results imply that statistical mechanics is useful for the system and provide strong support for the concept of jamming.
Citation
Physical Review Letters
Volume
89
Issue
9

Keywords

foam, granular materials, jamming

Citation

Ono, I. , O'Hern, C. , Langer, S. , Liu, A. , Nagel, S. and Durian, D. (2002), Effective Temperatures of a Driven System Near Jamming, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150833 (Accessed October 31, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 25, 2002, Updated October 12, 2021