Computer controlled shear cell for measurement of flow properties of particulate materials

摘要

A shear tester for powders that allows the determination of a dynamic yield locus from a single test was built and tested. The principle of the computer controlled shear cell (CCSC) is that dynamic yield states can be maintained din a test cell over a range of normal and shear stresses in the same tests. This leads directly to a dynamic yield locus. With its flexible design, the CCSC can also be used as a Jenike shear cell or a direct shear cell. The performance of the CCSC used as a dynamic yield locus tester (YLT) was compared with the CCSX used as a Jenike shear cell. Wheat flour and sugar were the test materials.