ABSTRACT
Dependences of parameters of acoustic emission on longitudinal and transversal deformations on conditions of uniaxial test were measured. Sandstone and coal samples were used. Amplitude of pulses, number of pulses, the mean value of amplitude, duration of pulses were registered. Grain joints failure as the source of acoustic emission is discussed. Comparison of predicted and observed dependences shows quite good agreement in case of number of pulses. Confirmation of grain joints failure model by uniaxial stress cyclic loading test is presented. The type analysis of duration of pulses and amplitude of pulses is discussed, too.
