Selective ply-level hybridisation for improved notched response of composite laminates

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Furtado, C (Autor) FEUP; Arteiro, A (Autor) FEUP; Catalanotti, G (Autor) Outra; Xavier, J (Autor) Outra; Camanho, PP (Autor) FEUP

Revista

Título: Composite Structures

Vol. 145

Páginas: 1-14

ISSN: 0263-8223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 40 Citações

Scopus - 46 Citações

Outras Informações

ID Authenticus: P-00K-87D

DOI: 10.1016/j.compstruct.2016.02.050

Abstract (EN): This work presents an experimental study on the effect of ply-level hybridisation on the tensile unnotched and notched response of composite laminates. In a first assessment, notched tests were performed on laminates with nominal ply thicknesses between 0.03 mm and 0.30 mm. From the understanding of the effect of ply thickness on the damage mechanisms that govern the notched response of laminates, the concept of ply-level hybridisation is introduced, which consists in combining plies of different grades. A uniform combination of thin and conventional plies resulted in a hybrid laminate with intermediate notched response. Selective hybridisation, where thin off-axis plies are combined with thicker 0 degrees plies, resulted in a globally enhanced notched behaviour without compromising the unnotched and fatigue responses. This work clearly shows how ply-level hybridisation, when designed to trigger specific damage mechanisms, can be used to improve the notched response of composite laminates.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14