Mode I interlaminar fracture of woven glass/epoxy multidirectional laminates

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Pereira, AB (Autor) Outra; de Morais, AB (Autor) Outra; de Moura, MFSF (Autor) FEUP; Magalhaes, AG (Autor) Outra

Revista

Título: Composites Part A: Applied Science and Manufacturing

Vol. 36

Páginas: 1119-1127

ISSN: 1359-835X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 36 Citações

Scopus - 52 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-000-5EC

DOI: 10.1016/j.compositesa.2005.01.006

Abstract (EN): Mode I Double Cantilever Beam (DCB) tests were performed on woven glass/epoxy multidirectional laminates. Selected specimen stacking sequences with starter delaminations in theta/-theta and 0/theta interfaces were first evaluated with three-dimensional finite element (FE) models. During the DCB tests, most specimens suffered intraply damage and crack branching to a neighbouring interface. Nevertheless, it was generally possible to measure valid interlaminar critical strain energy release rates, G(IC), of initiation from the film and from a mode I precrack. The former were significantly lower than the latter due to steep R-curve effects. G(IC) values of 0/theta specimens were fairly theta-independent, while theta/-0 specimens exhibited higher G(IC) from the film. A subsequent FE analysis provided explanations for the interface effect on G(IC).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9