Advanced Acoustic Emission Signal Treatment in the Area of Mechanical Cyclic Loading

One of promising possibilities of watching of damage course of material exposed to cyclic mechanical loading is using acoustic emission technique (AE). In the signal monitored on the surface of material, it is possible to identify course of a number of processes that appear both on the surface and inside the material of the construction. From this point of view, we can see that this method could provide us with information about the course of fatigue damage and it could help us specify residual fatigue life. Various types of AE records processing that are often used in practice are dealt with. Results gained to date show wide possibilities of application of the method of acoustic emission for the identification of fatigue processes. In this paper, the basic comments of results of experimental measuring are shown that were aimed to possibilities of identification of various stages of fatigue process, realised on electro-resonance loading equipment with the help of acoustic emission technique.