The acousticemission regularity and spectrum characteristics of rock under cyclic loading and multi-stage loading during complete failure process were studied.
对循环加载和分级加载条件下岩石损伤破坏全过程的声发射规律和频谱特性进行了研究。
2
The characteristic of linear and nonlinear responses between arc excited ultrasonic emission and excited frequency was realized by the received signal from the acoustic to the ultrasonic spectrum.