Abstract
How does pore liquid reconfigure within shear bands in wet granular
media? Conventional wisdom predicts that liquid is drawn into dilating
granular media. We, however, find a depletion of liquid in shear bands
despite increased porosity due to dilatancy. This apparent paradox is
resolved by a microscale model for liquid transport at low liquid
contents induced by rupture and reconfiguration of individual liquid
bridges. Measured liquid content profiles show macroscopic depletion
bands similar to results of numerical simulations. We derive a modified
diffusion description for rupture-induced liquid migration.
Users
Please
log in to take part in the discussion (add own reviews or comments).