Interlaminar and intralaminar fracture characterization of composites under mode I loading

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

M. F. S .F. de Moura (Autor) FEUP; R. D. S. G. Campilho (Autor) Outra; A. M. Amaro (Autor) Outra; P. N. B. Reis (Autor) Outra

Revista

Título: Composite Structures

Vol. 92 Nº 2

Páginas: 144-149

ISSN: 0263-8223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 40 Citações

ISI Web of Science

Scopus - 73 Citações

COMPENDEX

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-003-AFC

DOI: 10.1016/j.compstruct.2009.07.012

Abstract (EN): The interlaminar and intralaminar fracture of laminated composites under mode I loading was studied using the double cantilever beam test. The effect of bridging on the measured fracture energy was assessed by cutting fibres during crack propagation. The fracture energy was evaluated considering a previously developed data reduction scheme based on the beam theory and crack equivalent concept. The model only requires the applied load-displacement data and provides a complete R-curve allowing the definition of the critical energy from the plateau value. A cohesive damage model was used to validate the procedure. It was verified experimentally that bridging phenomenon is pronounced, being more important in intralaminar tests. However, a detailed observation of the intralaminar R-curves showed that the intrinsic toughness, without fibre bridging effects, is similar to the interlaminar one.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6