ABSTRACT
Liquefaction results from the mechanics of grains upon undrained loading. For liquefaction to occur, constrained (undrained) flow boundary condition, sufficient contraction upon loading and sufficient driving stress that exceeds the undrained shear strength are required. In this paper an elastoplastic constitutive model based on a multilaminate framework (Galavi, 2007) has been considered for modeling liquefaction behavior of sand under monotonic deformation.
