A 'principal stress cap' model for stresses in a circular silo with an off-centre circular core: Finite core models, including filled silos, incipient flow and switch stresses

摘要

Stresses have been modelled in a silo with offset centre of stress and finite circular core, using the methodology developed by Matchett et al. (2015). Several types of core -annulus stress interactions have been proposed and some of the problems in the original Virtual Core model have been ameliorated. However, the selection of the most appropriate model is limited by lack of data on internal stress distributions within silos and the observation that different internal structures can give similar wall stress values.