Phys. Rev. Lett. 89, 098303 (2002) [4 pages]Shear-Induced Stress Relaxation in a Two-Dimensional Wet FoamReceived 13 May 2002; published 13 August 2002 We report on experimental measurements of the flow behavior of a wet, two-dimensional foam under conditions of slow, steady shear. The initial response of the foam is elastic. Above the yield strain, the foam begins to flow. The flow consists of irregular intervals of elastic stretch followed by sudden reductions of the stress, i.e., stress drops. We report on the distribution of the stress drops as a function of the applied shear rate. We also comment on our results in the context of various two-dimensional models of foams. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.098303
DOI:
10.1103/PhysRevLett.89.098303
PACS:
83.80.Iz, 82.70.–y
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.