REHABILITATION TECHNIQUES APPLIED TO FILLET WELDED JOINTS IN ORDER TO INCREASE THE FATIGUE LIFE TIME

摘要

The rehabilitation of the fillet welded joints in order to increase fatigue life time is a delicate issue of great importance. In principle, all rehabilitation techniques, in one way or another, reduce the stress concentrators by increasing the connection radius from the intersection between filler and the base material. The paper presents a practical method of calculating the stress concentrators at the cruciform fillet welded joints and the results obtained on the fatigue lifetime, following the application of the rehabilitation techniques on several cruciform fillet welded joints.