The Influence of the Fluctuation of Micro-Polar Boundary Conditions on the Evolution of Shear Strain Localization in Granular Materials

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In this paper the interface behavior between an infinite strip of a granular mate- rial and a rough boundary under plane shearing is numerically investigated using a micro-polar continuum approach. Particular attention is paid to the influence of a fluctuation of micro-polar boundary conditions along the interface on the evolution of shear strain localization within the granular material. The mechanical behavior of the cohesionless granular material is described with a micro-polar hypoplastic model. The evolution equations for the stress and the couple stress are non-linear tensor valued functions which model inelastic behavior. The investigations show that the micro-polar boundary conditions have a strong influence on the location and thickness of the zone of strain localization when relative displacements within the interface are excluded.

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Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

1255-1260

Citation:

E. Bauer et al., "The Influence of the Fluctuation of Micro-Polar Boundary Conditions on the Evolution of Shear Strain Localization in Granular Materials", Key Engineering Materials, Vols. 340-341, pp. 1255-1260, 2007

Online since:

June 2007

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$38.00

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