2002/12/31 by Ethan Pratt, Michael Dennin · 1 citation
Earth and Planetary Sciences · Engineering · Materials Science · Physics and Astronomy · #Bubble #Composite material #Enhanced Oil Recovery Techniques #Geological formations and processes #Intermittency #Materials science #Mechanics #Nonlinear system #Physics #Pickering emulsions and particle stabilization #Range (aeronautics) #Shear stress #Statistical physics #Strain rate #Stress (linguistics) #Thermodynamics #Turbulence #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.67.051402
published as Phy. Rev. E v. 67 p. 051402 (2003) · accepted to Physical Review E
arxiv created 2003/03/18 · openalex publication_date 2003/05/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A sheared wet foam, which stores elastic energy in bubble deformations, relaxes stress through bubble rearrangements. The intermittency of bubble rearrangements in the foam leads to effectively stochastic drops in stress that are followed by periods of elastic increase. We investigate global characteristics of highly disordered foams over three decades of strain rate and almost two decades of system size. We characterize the behavior using a range of measures: average stress, distribution of stress drops, rate of stress drops, and a normalized fluctuation intensity. There is essentially no dependence on system size. As a function of strain rate, there is a change in behavior around shear rates of 0.07 s(-1).