Phys. Rev. Lett. 90, 258303 (2003) [4 pages]Local Stress Relaxation and Shear Banding in a Dry Foam under ShearReceived 27 November 2002; published 27 June 2003 We have developed a realistic simulation of 2D dry foams under quasistatic shear. After a short transient, a shear-banding instability is observed. These results are compared with measurements obtained on real 2D (confined) foams. The numerical model allows us to exhibit the mechanical response of the material to a single plastication event. From the analysis of this elastic propagator, we propose a scenario for the onset and stability of the flow localization process in foams, which should remain valid for most athermal amorphous systems under creep flow. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.258303
DOI:
10.1103/PhysRevLett.90.258303
PACS:
82.70.Rr, 05.40.–a, 83.50.–v, 83.60.–a
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