Constitutive modelling of cyclic loading paths
Gertraud Medicus, Merita Tafili (Ruhr Universität Bochum), Wolfgang Fellin
It is essential to understand and constitutively describe the mechanical behaviour of soils under cyclic loading for many applications such as offshore wind turbines subjected to wave cycles and wind cycles, geotechnical structures subjected to repetitive traffic and high-speed train loads, or even earthquake loading. The intergranular strain concept (IGS) and intergranular strain anisotropy formulation (ISA) are state of the art extensions to describe small-strain effects. We enhance hypoplasticity and barodesy with ISA and IGS to improve its small-strain predictions and investigate its response. The performance of the models is validated with experimental data.