Research Article
Unloading-Induced Crack Propagation of Two Collinear Unequal Length Flaws in Brittle Rocks
Table 2
Relationship between the ratio
of stress intensity factor and the length of the main crack (
).
| | The length of main crack (mm) | The ratio of stress intensity factor– | The ratio of stress intensity factor– | The ratio of stress intensity factor– | The ratio of stress intensity factor– |
| | 0.4 | 1.041 | 1.055 | 1.041 | 1.055 | | 0.6 | 1.031 | 1.046 | 1.068 | 1.097 | | 0.8 | 1.029 | 1.038 | 1.084 | 1.119 | | 1.2 | 1.016 | 1.022 | 1.234 | 1.292 | | 1.6 | 1.002 | 1.019 | 1.432 | 1.554 |
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