ABSTRACT
A relevant question is how to include the microstructural information in constitutive modeling. One option is to adopt a commonly accepted set of “constitutive” stresses (net stress and suction; Bishop-or intergranular-stress and suction) and to transfer to the constitutive model formulation the task of including microstructural effects. A second alternative is to explore first if microstructure may be included in the definition of constitutive stresses and to develop a constitutive model afterwards. The second alternative has some promise of leading to a simpler class of models. This alternative was proposed in Alonso et al. (2012) and it is further discussed in this paper.
