Texture Alignment in Simple Shear

We illustrate the flow behaviour of fluids with isotropic and anisotropic microstructure (internal length, layering with bending stiffness) by means of numerical simulations of silo discharge and flow alignment in simple shear. The Cosserat theory is used to provide an internal length in the constitutive model through bending stiffness to describe isotropic microstructure and this theory is coupled to a director theory to add specific orientation of grains to describe anisotropic microstructure. The numerical solution is based on an implicit form of the Material Point Method developed by Moresi et al. [1].

• Type: Conference
• Year: 2003
• Where: ICCS
• Authors: Frédéric Dufour, Hans-B. Mühlhaus, Louis Moresi
• Keywords: Anisotropic Microstructure, Cosserat Theory, ICCS 2003, Internal Length