ZHOU Feng-xi, MI Hai-zhen, HU Yan-ni. An constitutive relation for collapsible deformation of loess based on generalized plasticity[J]. 2005, 26(11).DOI:
An incremental constitutive realtion is established based on the generalized plasticity through analyzing the plastic properties of collapsible deformation of loess. The moisture content of increasing dampness is regarded as an internal stress
and the collapsible volume yield surface and the shear yield surface are obtained through tests fitting; at the same time
the initial yield surfaces of collapsible deformation are given. It is shown that the model can reflect the properties of collapsible deformation under the different collapsible effects; and considering the collapsible volume deformation shear deformation and the influence of spherical stress and deviatoric stress to them.