Microstudy of the Anisotropy of Sandy Material

Table 2

Microscopic parameters of samples at the initial state.

(Pa)			(mm)	(mm)
2e8	2	0.5	1.2	0.6	0.18

Note: is the normal stiffness of the particles, is the tangent stiffness of the particles, is the tangential stiffness ratio, is the coefficient of friction, is the maximum radius of the particles, is the minimum radius of the particles, and is the porosity (area porosity).