Research Article
The Ultrasonic P-Wave Velocity-Stress Relationship and Energy Evolution of Sandstone under Uniaxial Loading-Unloading Conditions
Figure 4
Relationship between the P-wave velocity and stress in the L1 stage of the sandstone specimens: (a) US1; (b) US2; (c) US3.
(a) |
(b) |
(c) |