Non?coaxial hypoplastic model for sand with evolving fabric anisotropy including non?proportional loading

A Multi Plane Model for Natural Anisotropy of Sand

Anisotropy of sand is mainly due to the geometrical arrangement of particles that depends on the orientation of applied load respect to the bedding plane. It is geologically due to micro-fabric created by the arrangement of the particles configured during deposition. Most of the models develop using stress/strain invariants are not capable of identifying this kind of anisotropy. This is mainly ...

A Unified Anisotropic Elasto-plastic Model for Sand

This paper presents a unified approach to model the influence of fabric anisotropy 6 and its evolution on both the elastic and plastic responses of sand. A physically based fabric 7 tensor is employed to characterize the anisotropic internal structure of sand. It is incorporated 8 into the nonlinear elastic stiffness tensor to describe anisotropic elasticity, and is further 9 included explicitl...

Characterization of fabric tensile loading curve in nonlinear region related to their structure; Part1: woven fabric

Evaluation of the fabric formability by concentrated loading method

Magnetite grain shape fabric and distribution anisotropy vs rock magnetic fabric: a three-dimensional case study

ÐShape fabric and distribution anisotropy of magnetite grains in a highly ferromagnetic (s.l.) syenite are determined for three mutually perpendicular planes on about 600 magnetite grains. The grains are lenticular with an average aspect ratio of about 2.0. Their preferred orientation, determined by the inertia tensor method, is consistent with the principal directions of the magnetic susceptib...