A double slip non-coaxial flow rule for viscous-plastic Cosserat materials

Hans Muhlhaus, Jingyu Shi, Louise Olsen-Kettle, Louis-Noel Moresi

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We propose a double slip non-coaxial plastic model within the framework of a Cosserat continuum theory. In a Cosserat continuum, a material point possesses the degrees of freedom of an infinitesimal rigid body: two translations and one rotation in 2D. We formulate the plastic model into viscous-plastic constitutive relationships and illustrate the viscous-plastic behaviour of the model by means of numerical solution of a simple shear problem
Original languageEnglish
Pages (from-to)219 - 229
Number of pages11
JournalActa Geotechnica
Issue number4
Publication statusPublished - 2011

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