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| Perrot, Y; Davies, Peter; Kerboul, Andre; Baley, C. |
| Delays between lamination of structures and secondary bonding are common in boatbuilding. This paper presents results from an experimental study of the influence of manufacturing procedure on the bond strength of unidirectional glass fibre reinforced polyester composites. Continuously laminated panels are taken as the reference and compared with panels overlaminated after delays of one week with and without peel ply protection. A standard polyester and low styrene DCPD formulation were tested. ILSS testing is shown not to be sensitive to the procedure but crack propagation tests show very large differences in mode I fracture energy. A small drop in fracture energy is measured for a delay of one week between lamination of the first and second halves of the... |
| Tipo: Text |
Palavras-chave: Mode I; ILSS; Peel ply; Lamination procedure; Low styrene content resins; Glass/polyester composites. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4557.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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