Percorrer por data de Publicação, começado por "2021-09-22"
A mostrar 1 - 1 de 1
Resultados por página
Opções de ordenação
- Fatigue Performance of Thin Laser Butt Welds in HSLA SteelPublication . Riofrío, Patricio G.; Antunes, Fernando; Ferreira, José; Batista, António Castanhola; Capela, CarlosThis work is focused on understanding the significant factors affecting the fatigue strength of laser-welded butt joints in thin high-strength low-alloy (HSLA) steel. The effects of the weld profile, imperfections, hardness, and residual stresses were considered to explain the results found in the S-N curves of four welded series. The results showed acceptable fatigue strength although the welded series presented multiple-imperfections. The analysis of fatigue behavior at low stress levels through the stress-concentrating effect explained the influence of each factor on the S-N curves of the welded series. The fatigue limits of the welded series predicted through the stress-concentrating effect and by the relationship proposed by Murakami showed good agreement with the experimental results.