Research Article
Unloading-Induced Crack Propagation of Two Collinear Unequal Length Flaws in Brittle Rocks
Table 4
Mechanical parameters of intact specimen and sandstone.
| | Materials | Density (kg/m3) | Elastic modulus (GPa) | Compressive strength (MPa) | Tensile strength (MPa) | Poisson ratio |
| | Specimen | 2350 | 15.2 | 55 | 2.3 | 0.15 | | Sandstone | 2000~2600 | 10~100 | 20~200 | 4~25 | 0.2~0.3 |
|
|
