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FE-INVESTIGATIONS ON SHEAR LOCALIZATIONS IN GRANULAR BODIES WITHIN HYPOPLASTICITY

Summary A spontaneous shear localization in granular bodies is investigated with a finite element method based on a hypoplastic constitutive model. To simulate properly the formation of shear zones, a hypoplastic model was extended by polar, non-local and gradient terms to take into account a characteristic length of the microstructure. Two different rate boundary value problems were numerically analyzed with an extended model.