Energy parameters of acoustic emission signals at friction of surfaces of composite materials

Abstract

The results of processing of energy parameters of acoustic emission signals at friction of surfaces of composite material samples were considered. It is shown that the increase in axial load for friction units increases the median of average and total energy of registered acoustic emission signals. In addition, this increases their variance and standard deviation. It was determined that such increase of analysed parameters have nonlinear manner. It was established that increase in variance and standard deviation for total energy is greater than for average energy of acoustic emission signals.