Experimental study of fatigue deformation and damage characteristics of salt rock under cyclic loading

Testing study is made on the strength,deformation and fatigue damage process of salt rock under uniaxial compression condition by the rock mechanics test equipment RMT-150C.The results indicate that when the maximum of cyclic load is above threshold value,the fatigue axial deformation can be divided into three stages: initial deformation,constant velocity deformation and accelerating deformation.Changing the maximum and average cyclic load,can...