Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading

Fractional plasticity has been originally proposed for capturing the state-dependent nonassociated behaviour of sand, with no use state variables and additional plastic potentials. However, coarse aggregates, significant particle breakage would occur, which could influence stress-strain material, by shifting critical line in e − ln p ′ plane. In this note, an extension fractional constitutive modelling aggregates is made incorporating under triaxial loading. The developed model validated simulating a series laboratory test results different loading, where good agreement between simulations observed.