Table 2 The calibrated micro parameters of rock models.

From: Influence of kinematic parameters and rock properties on the cutting process with ODC based on discrete element method

Parameters

Red sandstone

Limestone

Red granite

White granite

Ec (GPa)

15.3

22.05

40.5

46.5

Epb (GPa)

10.2

14.7

27

31

pb_ten (MPa)

43

53

35

42

pb_coh (MPa)

8.6

10.6

35

42

kn/ks

2.4

3.5

2.1

7.5

Porosity

0.2

0.2

0.3

0.2

  1. Ec is the elastic modulus of linear contact, Epb is the elastic modulus of parallel bond, pb_ten is the tensile strength of the parallel bond, pb_coh is the cohesion strength of the parallel bond, kn, and ks are the normal and shear stiffness, respectively.
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