Shear band in sand with spatially varying density Academic Article

abstract

• Bifurcation theory is often used to investigate the inception of a shear band in a homogeneously deforming body. The theory predicts conjugate shear bands that have the same likelihood of triggering. For structures loaded symmetrically the choice of which of the two conjugate shear bands will persist is arbitrary. In this paper we show that spatial density variation could be a determining factor for the selection of the persistent shear band in a symmetrically loaded localizing sand body. We combine experimental imaging on rectangular sand specimens loaded in plane strain compression with mesoscale finite element modeling on symmetrically loaded sand specimens to show that spatial heterogeneity in density does have a profound impact on the persistent shear band. 2012 Elsevier Ltd. All rights reserved.

authors

• Abedi Mashhadimighani, Sara

published proceedings

• Journal of the Mechanics and Physics of Solids

author list (cited authors)

• Borja, R. I., Song, X., Rechenmacher, A. L., Abedi, S., & Wu, W.

citation count

• 66

complete list of authors

• Borja, Ronaldo I||Song, Xiaoyu||Rechenmacher, Amy L||Abedi, Sara||Wu, Wei

publication date

• January 2013

publisher

• Elsevier BV  Publisher

published in

• Journal of the Mechanics and Physics of Solids  Journal

keywords

• Bifurcation
• Digital Image Correlation
• Heterogeneous Sand
• Shear Band
• Strain Localization

Digital Object Identifier (DOI)

• 10.1016/j.jmps.2012.07.008

start page

• 219

end page

• 234

volume

• 61

issue

• 1