Abstract
To study the micro-mechanics of granular flows, two-dimensional rapid flow apparatus is newly designed. Characteristics of this apparatus are as follows; (a) it can deal wide range shear strain rate flows, (b) tangetntial stress can be measured, (c) movement of all particles can be observed by using a high-speed camera.
By using this apparatus, (a) effect of solid fraction on shear stress generation, (b) effect of shear strain rate on the stress generation and (c) relationship between contact pattern between each particles and tangential stress are studied. Contact characteristics between the particles have a much influence on stress generation of the granular shear flows.
