Finite Element Analysis with Iterated Multiscale Analysis for Mechanical Parameters of Composite Materials with Multiscale Random Grains

Table 5

Elasticity mechanical parameters of the matrix, grains, and joint interface materials.

Class	Young’s modulus (GPa)	Poisson's ratio
Rock grains	74.5	0.15
Matrix	13.5	0.25
Joint interface	50.5	0.20