Influence of competing notches on the fatigue strength of cut plate edges

Abstract Material fatigue is one of the elementary causes damage in steel construction besides corrosion and abrasion. Design recommendations require that weld seams are placed less stressed areas due to crack-sensitive nature welded areas. As a result, unwelded components such as free cut plate edges gain technical economic relevance locations for potential cracks. In metal processing industry, different thermal cutting processes frequently used. During process, unwanted boundary conditions can lead undesired cuts component geometry during process. These process dysfunctions incorrect rejects. This article presents results test data oxy-fuel defect-free faulty repair-welded samples investigate influence competing notches on edge. Specimens made from steels S355N S690Q 20-mm-thick plate. The presented shows strength damaged be recovered by repair procedure does not show any reduction determined pores or other metallurgical repaired section.