Table 1 Mechanical parameters of coal and rock obtained from laboratory test and numerical simulation.

From: Mechanical behavior of coal and rock with central hole defects under eccentric loading conditions

Item

Peak stress(MPa)

Elastic modulus(GPa)

Poisson’s ratio

Test result

42.69

1.42

0.21

Simulation results

42.40

1.38

0.23

Deviation

0.68%

2.8%

8.6%

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