Data/hora: 16/06/2024 03:32:25

Provedor de dados: 	5	
País: 	France	
Título: 	Microstructure and tensile properties of carbon-epoxy laminates produced by automated fibre placement: Influence of a caul plate on the effects of gap and overlap embedded defects	
Autores: 	Lan, Marine; Cartie, Denis; Davies, Peter; Baley, Christophe.	
Data: 	2015-11	
Ano: 	2015	
Palavras-chave: 	Carbon fibre; Defects; Mechanical properties; Automated fibre placement (AR).	
Resumo: 	Automated fibre placement (AFP) enables the trajectory of unidirectional composite tape to be optimized, but laying down complex shapes with this technology can result in the introduction of defects. The aim of this experimental study is to investigate the influence of gaps and overlaps on the microstructure and tensile properties of carbon-epoxy laminates. First, a comparison between a hand-layup and AFP layup, draped and cured under the same conditions, shows equivalent microstructures and tensile properties. This provides the reference values for the study. Then, gap and overlap embedded defects (more or less severe) are introduced during manufacturing, on two cross-ply layups [(0°/(90°)5/0°] and [(90°/0°)2/90°]. Autoclave cure without a caul plate results in local thickness variation and microstructural changes which depend on the defect type. This has a strong influence on mechanical performance. Use of a caul plate avoids these variations and in this case embedded defects hardly affect tensile properties.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00275/38609/37138.pdf

DOI:10.1016/j.compositesa.2015.07.023

http://archimer.ifremer.fr/doc/00275/38609/	
Editor: 	Elsevier Sci Ltd	
Formato: 	application/pdf	
Fonte: 	Composites Part A-applied Science And Manufacturing (1359-835X) (Elsevier Sci Ltd), 2015-11 , Vol. 78 , P. 124-134	
Fonte: 	2015 Elsevier Ltd. All rights reserved

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