Hybrid titanium-CFRP laminates for high-performance bolted joints

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Camanho, PP (Autor) FEUP; Fink, A (Autor) Outra; Obst, A (Autor) Outra; Pimenta, S (Autor) Outra

Revista

Título: Composites Part A: Applied Science and Manufacturing

Vol. 40

Páginas: 1826-1837

ISSN: 1359-835X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 74 Citações

ISI Web of Science

Scopus - 89 Citações

INSPEC

COMPENDEX

Classificação Científica

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

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia aeroespacial

Outras Informações

ID Authenticus: P-003-DSZ

DOI: 10.1016/j.compositesa.2009.02.010

Abstract (EN): This paper presents an experimental and numerical investigation of the mechanical response of bolted joints manufactured using new hybrid composite laminates based on the substitution of CFRP plies with titanium plies. The local hybridization of the material is proposed to increase the efficiency of the bolted joints in CFRP structures. Two modeling strategies, based on non-linear finite element methods, are proposed for the analysis of the bolt-bearing and transition regions of the hybrid laminates. The bolt-bearing region is simulated using a three-dimensional finite element model that predicts ply failure mechanisms, whereas the free-edge of the transition region is simulated using plane stress and cohesive elements. The numerical and experimental results indicate that the use of hybrid composites can drastically increase the strength of CFRP bolted joints and therefore increase the efficiency of this type of connection. In addition, the numerical models proposed are able to predict the failure mechanisms and the strength of hybrid composite laminates with a good accuracy.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12