Research Article

Brittleness Evaluation of Shale Based on the Brazilian Splitting Test

Table 5

Comparison between the mechanical parameters of indoor experiment and PFC model.

Poisson’s ratioElastic modulus
(GPa)
Failure load (kN)Peak strain
(%)
Tensile strength
(MPa)

Indoor experiment0.111.143.21.72813.48
PFC model0.10311.2513.2251.78013.785
Numerical simulation error3%1%0.8%3%0.8%