EXPERIMENTAL EVIDENCE OF STRUCTURAL DEVELOPMENT INSIDE SHEAR BANDS IN SANDS Chapter

abstract

• We show experimental evidence of vortices emanating from collapsed force chains in shear bands in real sands. From digital image-based local displacement data, a systematic, spatial pattern in kinematic data fields appears at the softening-critical state transition. By subtracting a linear shear displacement field from the observed non-affine displacement field, vortices appear and coordinate with the observed kinematics. We note differences in the vortex patterns observed in our sands from those observed in simulations on ideal granular materials, and discuss the fate of these vortices.

authors

• Abedi Mashhadimighani, Sara

author list (cited authors)

• Rechenmacher, A. L., Abedi, S., & Faoro, I.

citation count

• 1

complete list of authors

• Rechenmacher, Amy L||Abedi, Sara||Faoro, Igor

editor list (cited editors)

• Borja, R. I.

Book Title

• Multiscale and Multiphysics Processes in Geomechanics

publication date

• January 2011

publisher

• Springer Nature  Publisher

published in

• Springer Series in Geomechanics and Geoengineering  Journal

keywords

• Force Chain
• Length Scale
• Shear Band
• Vortex

Digital Object Identifier (DOI)

• 10.1007/978-3-642-19630-0_1

International Standard Book Number (ISBN) 13

• 9783642196294

start page

• 1

end page

• 4

URL

• http://dx.doi.org/10.1007/978-3-642-19630-0_1