Improved shape hardening function for bounding surface model for cohesive soils

Abstract

A shape hardening function is developed that improves the predictive capabilities of the generalized bounding surface model for cohesive soils, especially when applied to overconsolidated specimens. This improvement is realized without any changes to the simple elliptical shape of the bounding surface, and actually reduces the number of parameters associated with the model by one.

Keywords

• Constitutive model
• Bounding surface plasticity
• Shape hardening function
• Clay