Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/4256
Título: Taper angle optimization of scarf repairs in carbon-epoxy laminates
Autor: Campilho, Raul
Pinto, A. M. G.
Moura, M. F. S. F. de
Mendes, Isabel R.
Banea, Mariana D.
Silva, Lucas F. M. da
Palavras-chave: Carbon-epoxy
Cohesive zone models
Composite
Finite element analysis
Repair
Data: 2008
Relatório da Série N.º: CIFIE;2010
Resumo: 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.
Peer review: yes
URI: http://hdl.handle.net/10400.22/4256
Aparece nas colecções:ISEP – CIDEM – Artigos

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