The effect of through-thickness compressive stress on mode II interlaminar fracture toughness

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Catalanotti, G (Autor) Outra; Furtado, C (Autor) FEUP; Scalici, T (Autor) Outra; Pitarresi, G (Autor) Outra; van der Meer, FP (Autor) Outra; Camanho, PP (Autor) FEUP

Revista

Título: Composite Structures

Vol. 182

Páginas: 153-163

ISSN: 0263-8223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 30 Citações

Scopus - 38 Citações

Outras Informações

ID Authenticus: P-00N-1NR

DOI: 10.1016/j.compstruct.2017.09.014

Abstract (EN): The effect of through-thickness compressive stress on mode II interlaminar fracture toughness is investigated experimentally and replicated numerically. The modified Transverse Crack Tensile specimen recently proposed by the authors is used, together with an experimental device designed to apply a constant transverse compressive stress on the surface of the specimen. Experiments are conducted using IM7/8552 specimens for different compressive stresses, ranging from 0 to 100 MPa, covering all the practical applications commonly encountered in the aeronautical industry (e.g., tightened filled holes or bolted joints). It is shown that mode II interlaminar fracture toughness increases with the applied compressive through-thickness stress. Finally, experiments are replicated using appropriate numerical models based on cohesive elements that take into account frictional effects. A good agreement between numerical predictions and experiments is found.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11