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

Table 4

Size of rock random grains and the number in a statistical window.

Class	Grain size range	Average size	Number of rock grains	Sizes of statistical windows
Large grains	10–19 mm	14.5 mm	8	𝜀^1=100mm
Middle grains	1–10 mm	5 mm	20	𝜀^2=50mm
Small Grains	0.3–1 mm	0.6 mm	28	𝜀^2=5mm