Research Article
Crack Initiation Characteristics of Gas-Containing Coal under Gas Pressures
Table 2
Fitting function relationships.
| Relationship | Gas pressure | Fitting function | |
| σuc-KIC | No gas | | 0.84 | 0.5 MPa | | 0.78 | 1.0 MPa | | 0.56 | 1.5 MPa | | 0.89 |
| σt-KIC | No gas | | 0.94 | 0.5 MPa | | 0.9 | 1.0 MPa | | 0.91 | 1.5 MPa | | 0.82 |
|
|