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| Perrot, Yves; Baley, C; Grohens, Y; Davies, Peter. |
| Composites based on glass fiber reinforced low styrene emission polyester resins have been widely used over the last 10 years, in order to meet increasingly strict safety regulations, particularly in the pleasure boat industry. Previous studies of their mechanical properties suggested that although these resins are generally more brittle than traditional orthophthalic polyester resins this did not adversely affect the properties commonly used for quality control (short beam shear and tensile failure strength of mat reinforced composites). In the present paper results from a more detailed study of damage behaviour are presented. Tests include fracture toughness (K (Ic) ) tests on resins, fibre/matrix interface energy, detection of composite damage... |
| Tipo: Text |
Palavras-chave: Interface properties; Damage initiation; Styrene emission; Unsaturated polyester; Glass fibers. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2316.pdf |
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| Davies, Peter; Baley, C; Loaec, Henri; Grohens, Y. |
| This paper presents results from a study of the influence of surface preparation on the mechanical performance of overlaminated polyester composites. Panels of 16 woven glass plies have been prepared in two halves by hand lay-up. After the first 8 plies were laminated the surface was either protected by a peel ply or left in air. The overlamination of the second half of the composite thickness was completed after different periods and interlaminar shear, flexure and mode I fracture specimens were tested. The results enabled the influence of the delay and the surface condition to be related to mechanical performance. Surfaces protected with peel plies show very low G(Ic) propagation energy release rates. Results are compared to those from continuous... |
| Tipo: Text |
Palavras-chave: Mode I; Woven; Peel ply; Glass/polyester; Overlamination; Interlaminar. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1034.pdf |
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