Parameter identification for a macroscopic granular soil model applied to dense Berlin Sand

摘要

The present paper outlines the macroscopic stress-strain behaviour of cohesionless soils by the ex- ample of dense Berlin Sand. Granular materials as sand show very complex stress-strain relations depending on] the stress state and the load history. Examination of these relations is performed at a representative elementary vol- ume (REV) consisting of a sufficient amount of particles. In triaxial tests quasi-static loads are applied to axisym- Metric samples, representing the REV, with simultaneous measurement of the response of the granular structure.