Analysis of the effect of cold-working of rivet holes on the fatigue life of an aluminum alloy

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Paulo Matos (Autor) FEUP; A J McEvily (Autor) Outra; Pedro Moreira (Autor) FEUP; Paulo Tavares De Castro (Autor) FEUP

Revista

Título: International Journal of Fatigue

Vol. 29 Nº 3

Páginas: 575-586

ISSN: 0142-1123

Editora: Elsevier

Indexação

ISI Web of Knowledge - 42 Citações

Scopus - 69 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia aeroespacial

Outras Informações

ID Authenticus: P-004-BG2

DOI: 10.1016/j.ijfatigue.2006.04.004

Abstract (EN): An experimental and analytical program was carried out to assess the effect of cold-working by hole expansion on the fatigue life of Alclad 2024-T3 aluminium alloy. The magnitude of the residual stresses introduced into the specimens due to cold expansion was evaluated by an X-ray diffraction procedure. Specimens containing non-cold-worked and cold-worked holes were tested under cyclic loading at an R-ratio of 0.1. The rates of fatigue crack propagation were determined by measurement of striation spacing. A main outcome of the present work was the determination of the crack-opening stress intensity as a function of the range of the stress intensity factor. For the cold-worked specimens an inverse methodology was adopted to estimate the crack-opening stress intensity as influenced by the residual stress field. Finally, a crack growth model was used to provide a correlation with the experimental fatigue lifetimes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12