| Popis: |
The paper presents the results of a study by acoustic and eddy current methods of the fatigue loading process of a power structural element made of austenitic stainless steel. A riveted joint of a plate made of austenitic metastable steel with a stiffener, which is widely used in industry, for example, in the manufacture of vessels, was chosen. During fatigue loading the change in elastic characteristics and the volume fraction of strain-induced martensite was studied in zones close to the rivet hole. The relative number of loading cycles by using an earlier developed technique, based on the ultrasonic and eddy current measurements was calculated. A comparison of the cyclic lifes of the tested power structural element and the plate without a concentrator was caried out |
