Effect of random packing on stress relaxation in foam

Journal of Physical Chemistry B

Volumn 101, Issue 43, 1997, Pages 8667-8671

  Langer, Stephen A ^a   Liu, Andrea J ^b  

^a NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; BUBBLES (IN FLUIDS); COMPUTER SIMULATION; ELASTICITY; STRAIN; STRESS RELAXATION;

RANDOM PACKING;

FOAMS;

EID: 0031245855     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp971265b     Document Type: Article

References (8)

1. Liu, A. J.; Ramaswamy, S.; Mason, T. G.; Gang, H.; Weitz, D. A. Phys. Rev. Lett. 1996, 76, 3017.
2. Sollich, P.; Lequeux, F.; Hébraud, P.; Cates, M. E. Phys. Rev. Lett. 1997, 78, 2020.
3. Durian, D. J. Phys. Rev. Lett. 1995, 75, 4780.
4. Durian, D. J. Phys. Rev. E 1997, 55, 1739.
5. In fact, the interactions are not pairwise additive. See: Lacasse, M. D.; Grest, G. S.; Levine, D.; Mason, T. G.; Weitz, D. A. Phys. Rev. Lett. 1996, 76, 3448. This affects the magnitude of the elastic modulus, but should not affect the qualitative features that we are exploring.
6. Lacasse, M. D.; Grest, G. S.; Levine, D. Phys. Rev. E 1996, 54, 5436.
7. Morse, D. C.; Witten, T. A. Europhys. Lett. 1993, 22, 549.
8. Note that we have implemented the viscous interaction in a different way from Durian, who replaced the sum over neighbors j in the first term on the right-hand side of eq 1 with the velocity given by the macroscopic average velocity profile at that point. This difference cannot affect static or quasistatic properties but may affect dynamical quantities such as the rate of stress relaxation.