Taper angle optimization of scarf repairs in carbon-epoxy laminates

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

R. D. S. G. Campilho (Autor) FEUP; A. M. G. Pinto (Autor) FEUP; M. F. S. F de Moura (Autor) FEUP; I. R. Mendes (Autor) FEUP; M. D. Banea (Autor) Outra; L. F. M. da Silva (Autor) FEUP

Ata de Conferência Internacional

Título: Iberian Conference on Fracture and Structural Integrity 2010

Páginas: 1-6

Iberian Conference on Fracture and Structural Integrity 2010

Porto, Portugal, 17 a 19 de Março de 2010

Classificação Científica

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

Outras Informações

Abstract (EN): The increasing use of Carbon-Fibre Reinforced Plastic (CFRP) laminates in high responsibility applications introduces an issue regarding their handling after damage. The availability of efficient repair methods is essential to restore the strength of the structure. The availability of accurate predictive tools for the repairs behaviour is also essential for the reduction of costs and time associated to extensive tests. This work reports on a numerical study of the tensile behaviour of three-dimensional (3D) adhesively-bonded scarf repairs in CFRP structures, using a ductile adhesive. The Finite Element (FE) analysis was performed in ABAQUS® and Cohesive Zone Models (CZM¿s) was used for the simulation of damage in the adhesive layer. A parametric study was performed on two geometric parameters. The use of overlaminating plies covering the repaired region at the outer or both repair surfaces was also tested as an attempt to increase the repairs efficiency. The results allowed the proposal of design principles for repairing CFRP structures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6