Jméno :Ing. Matúš Margetin PhD.
Název :EXPERIMENTAL QUANTIFICATION OF THE FATIGUE STRESS AND STRAIN NOTCH FACTOR ON MIG BUTT WELDED S355 STEEL SPECIMEN
Autoři :MARGETIN M., CHMELKO V.
Abstrakt :Joining components by welding is the most widespread method of joining for metal structures. For this reason, fatigue strength assessment of welded joints is of great interest to engineers involved in structure design. The welded joint itself can be considered a notch composed of a technological (inner deffects and material inhomogenities) and a geometrical (surface irregularities) part. Due to stress and strain concentration, such a notch decreases fatigue endurance of a welded construction.
This paper shows experimental quantification of the fatigue stress and strain notch factor for butt welded joints manufactured by MIG technology.