P44 - Numerical Simulation of Gradual Compaction of Granular Materials and the Uncertainty Quantification of the Proposed Mathematical Model
DescriptionThe poster deals with mathematical modelling of granular materials and focuses on the process of their gradual compaction called ratchetting. The model of hypoplasticity introduced by E. Bauer et al. is investigated and the problem of stress-controlled hypoplasticity is considered. The behaviour of strain paths produced by periodic stress paths in a granular material during cyclic loading and unloading is calculated and a limit state of the material is numerically approximated. Then, the impact of uncertain input parameters on ratchetting trends and the material limit states is quantified by means of fuzzy set techniques.
TimeTuesday, June 2710:15 - 10:16 CEST