The acoustic emission also shows a decreasing rate, following the drop in stress-intensityfactor.
随着应力强度因子的下降，声发射也随着减少。
2
Stressintensityfactor (k). A factor used in fracture mechanics to specify the stressintensity at the tip of a crack.
应力强度因子(K)：断裂力学中使用的一个因子，说明裂纹尖端处的应力强度。
3
The result indicates that the maximum of dynamical stressintensityfactor arrives behind the load time and increases with the size of thick wall cylinder.