Showing papers by "Zdenek P. Bazant published in 1986"
341 citations
TL;DR: In this article, the deviatoric cross section of a smooth yield surface for a frictional material such as concrete, soil, or rock is examined, and it is shown that the simplest avail formulae do not guarantee convexity of the yield surface, while the formula developed by later research does.
Abstract: Existing formulations for the deviatoric cross section of a smooth yield surface for a frictional material such as concrete, soil, or rock are examined. It is shown that the simplest avail formulae do not guarantee convexity of the yield surface for all combinations of material parameters, while the formula developed by later research does.
38 citations