Simulation of shear localization in granular bodies within gradient-enhanced hypoplasticity

• Autorzy: Tejchman J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a FE-analysis of a spontaneous shear localization inside non-cohesive sand during plane strain compression. The calculations were carried out with a gradient-enhanced hypoplastic constitutive law. The hypoplastic law can reproduce essential features of granular bodies depending on the void ratio, pressure level and deformation direction. To model the thickness of shear zones, a characteristic length of the microstructure was incorporated via the second gradient of the modulus of the deformation rate. To determine the effect of micro-structure, the analysis was performed with different characteristic lengths for the same specimen size.

Słowa kluczowe

EN

characteristic length; finite element method; gradient model; plane strain compression; shear localization

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2004
• Tom: Vol. 51, nr 3
• Strony: 243--265
• Opis fizyczny: Bibliogr. 76 poz., il.

Twórcy

autor

Tejchman J.

• Gdańsk University of Technology, Civil Engineering Department, ul. Narutowicza 11/12, 80-952 Gdańsk, Poland,

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