CONSTITUTIVE-EQUATIONS OF SOILS BASED ON THE SUBLOADING SURFACE CONCEPT

Various cyclic plasticity models have been proposed in the past. Among them the subloading surface model (Hashiguchi, 1989) only is regraded to have the pertinent structure adaptable to the prediction of cyclic loading behavior of materials as has been revealed by the author (Hashiguchi, 1993b). The constitutive equation of soils is formulated by introducing the subloading surface model and formulating the evolution rule of the rotational hardening for the description of the induced anisotropy.