Research Article
The Coupled Effect of Loading Rate and Grain Size on Tensile Strength of Sandstones under Dynamic Disturbance
Table 1
Basic parameters of the sandstones with different sizes.
| | Types of sandstone | Young’s modulus (GPa) | Poisson’s ratio | (m/s) | Compressive strength (MPa) | Tensile strength (MPa) | (MPa⋅m1/2) | Density (kg/m3) |
| | Coarse grain | 13.63 | 0.236 | 2501 | 48.6 | 3.99 | 0.52 | 2278 | | Medium grain | 35.8 | 0.261 | 2658 | 62.57 | 5.8 | 0.58 | 2354 | | Fine grain | 53 | 0.285 | 2899 | 123.56 | 12.62 | 0.73 | 2700 |
|
|
