The effect of cold forming residual stresses in local fatigue approaches: A numerical perspective

• Tipo: Artigo em Revista Científica Internacional
• Data: 2024

Autores

Souto, C (Autor) Outra; Parente, M (Autor) Outra; Correia, J (Autor) FEUP; de Jesus, A (Autor) Outra

Revista

Título: Thin-Walled Structures

Vol. 205

ISSN: 0263-8231

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-017-234

DOI: 10.1016/j.tws.2024.112476

Abstract (EN): Thin-walled structures generally rely on cold-formed mild steel profiles. Due to cold forming, a significant formation of residual stresses impacts their overall fatigue behaviour. In this work, a state-of-the-art framework for fatigue life prediction is proposed and applied to both roll-formed and press-braked full-scale profiles. In summary, the profile's manufacturing process is numerically simulated to obtain a representative residual stress field. These results are then used as the initial state during a subsequent structural and fatigue analysis. A clear detrimental residual stress effect is verified. Importantly, however, is to note that prediction accuracy increases significantly when these effects are considered.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15