EXPERIMENTAL STUDY ON YIELDING AND PLASTIC FLOW OF TOYOURA SAND

摘要

The objective of this study was to establish the kinematic yieldloci of Toyoura sand, by considering medium dense Toyourasand and shearing it following several stress path the kinematicyield loci were determined about the probe point. The associated flow rule commonly used due to its ease in computationwas observed to be experimentally invalid from the Y2 yield loci where the ratio of plastic strains to total strains isgenerally greater than 0.5. This is in agreement with the literature review, although it should be noted that Kuwano(1999) observed that for conditions below Y2 the associated flow rule was valid.