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

作者:Muehlhaus Hans B; Shi Jingyu; Olsen Kettle Louise; Moresi Louis
来源:Acta Geotechnica, 2011, 6(4): 219-229.
DOI:10.1007/s11440-011-0148-1

摘要

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.

  • 出版日期2011-12