Amplitude Dependence of Acoustics Wave Velocities in Consolidated Rocks under Pressure

Strain amplitude cycling experiments were conducted on dry samples of sedimentary rocks to investigate the<br>strain amplitude dependence of P- and S- wave velocities in the range of ε~1,5*10-7 to 9*10-7. Wave<br>velocities increase with amplitude strain. Wave velocities obtained from experiments show a remain<br>hysteresis.