Research Article
Attenuation Characteristics of Stress Wave Peak in Sandstone Subjected to Different Axial Stresses
Table 1
Peak and its corresponding time under different axial stresses.
| Axial stress (MPa) | Peak (mV)/corresponding time (μs) | Impact velocity (m/s) | Test point A | Test point B | Test point C | Test point D | Test point E |
| 0.00 | 0.1863/142 | 0.1620/227 | 0.1377/311 | 0.1230/398 | 0.1033/494 | 4.45 | 2.76 | 0.1543/155 | 0.1403/218 | 0.1200/299 | 0.1073/372 | 0.0900/452 | 4.44 | 5.52 | 0.1247/152 | 0.1173/214 | 0.1037/289 | 0.0943/356 | 0.0830/429 | 4.47 | 8.28 | 0.0967/148 | 0.0940/210 | 0.0823/276 | 0.0787/341 | 0.0717/413 | 4.46 | 11.04 | 0.0807/141 | 0.0790/212 | 0.0710/266 | 0.0680/334 | 0.0643/398 | 4.35 | 13.80 | 0.0727/142 | 0.0693/202 | 0.0633/266 | 0.0617/323 | 0.0593/393 | 4.38 | 16.56 | 0.0660/142 | 0.0613/209 | 0.0573/261 | 0.0553/330 | 0.0527/378 | 4.39 | 19.32 | 0.0653/142 | 0.0577/201 | 0.0553/257 | 0.0547/327 | 0.0523/378 | 4.41 | 22.08 | 0.0630/137 | 0.0570/199 | 0.0567/259 | 0.0543/314 | 0.0497/374 | 4.36 | 24.84 | 0.0617/140 | 0.0540/202 | 0.0547/263 | 0.0530/322 | 0.0463/372 | 4.45 | 27.60 | 0.0597/149 | 0.0553/192 | 0.0520/252 | 0.0510/316 | 0.0480/379 | 4.49 | 30.36 | 0.0593/149 | 0.0550/204 | 0.0520/261 | 0.0480/318 | 0.0460/382 | 4.43 | 33.12 | 0.0587/131 | 0.0537/197 | 0.0493/250 | 0.0490/319 | 0.0437/380 | 4.47 |
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