Shear modulus of two-dimensional foams: the effect of area dispersity and disorder.
We use the Surface Evolver to determine the shear modulus G of a dry 2D foam of 2500 bubbles, using both extensional and simple shear. We examine G for a range of monodisperse, bidisperse and polydisperse foams, and relate it to various measures of the structural disorder of each foam. In all cases, the shear modulus of a foam decreases with increasing disorder.
Cox
S J
SJ
Institute of Mathematical and Physical Sciences, University of Wales Aberystwyth, SY23 3BZ, Ceredigion, UK. foams@aber.ac.uk
Whittick
E L
EL
D003198:Computer Simulation; D004058:Diffusion; D004548:Elasticity; D005740:Gases / Q000737:chemistry*; D045423:Microbubbles; D044085:Microfluidics / Q000379:methods*; D008956:Models, Chemical; D008958:Models, Molecular; D015233:Models, Statistical; D008968:Molecular Conformation; D033081:Shear Strength; D014867:Water / Q000737:chemistry*
D005740:Gases; D014867:Water