Effect of grinding on the fatigue strength of mild and high strength steel fillet weld joints

• DOI: 10.1016/j.rineng.2024.102135
• Publication Date: 2024-04-12T01:47:31Z
• Authors: Benjamin Laher; Christian Buzzi; Peter Brunnhofer; Martin Leitner
• Keywords: Cruciform; Fillet (mechanics); Fatigue limit; Fillet weld; High strength steel; Hardening (computing)

The study focuses on the increase in fatigue strength welded components considering grinding as post treatment. This is examined based cruciform joints and transverse non-load-carrying attachment most relevant critical applications regard to rail vehicle structures with focus track laying machines. Firstly, starts determination of a new welding parameter for joint S960 high steel. verified by t8/5-time analysis hardening measurements weld seam. Secondly, received set compared current literature about joints. Furthermore, lifetime curves are an as-welded ground condition. Finally, determined summarised, which shows that FAT-class also increases increasing yield case specimens.