Modification of a Constitutive Model in the Framework of a Multilaminate Method for Post-Liquefaction Sand

Abstract The estimation of the value and direction of post-liquefaction deformations is one of the most challenging issues in the modelling of liquefaction soil, due to the inherent and induced anisotropy. It is very important in the science of soil-constitutive models to present a simple and comprehensive model for the prediction of fabric anisotropy effects in pre- and post-liquefaction behaviour in granular soil. In the framework of the multilaminate method, 17 planes with pre-determined directions are defined, instead of defining all occurrences depending on the direction in three planes p...