Effects of process parameters on the mechanical properties and morphology of stitched and non-stitched carbon/epoxy liquid resin-infused NCF laminate, out of autoclave and out of oven
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The effects of resin infusion process parameters on the mechanical properties of stitched or non-stitched composite laminates out of autoclave were studied using the design of experiment method. This method was chosen due to the complexity of the problem. The preforms used were laminates of multi-axial quasi-isotropic non-crimp fabric (NCF), either stitched or non-stitched. A literature review identified nine parameters as the key design-of-experiment factors: sewing; the number of NCFs; the number of high-porous media; the interaction between the number of NCFs and the number of high-porous media; the mould temperature, injection temperature and cure temperature; the position of the preform; and, finally, the vacuum level. The mechanical properties studied and the morphological analysis carried out concerned the resistance in tension, compression and shear, the glass transition temperature, the thickness of the finished laminate, and the fibre volume fraction and porosity. The study revealed the best suited manufacturing conditions.
KeywordsResin transfer moulding (RTM) Carbon fibres Mechanical properties Porosity Voids Liquid resin infusion Probabilistic method
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- 1.Takeda F, Nishiyama S, Hayashi K and al., Research in the application of the VaRTM technique to the fabrication of primary aircraft composite structures. Mitsubishi Heavy Industries, Technical Review Vol. 42 (No. 5), 2005. http://www.mhi.co.jp/technology/review/pdf/e425/e425220.pdf. Accessed 10 May 2012
- 2.Beckwith SW (2006) Resin infusion liquid molding vacuum infusion processing numerous other names. An alphabet soup of expanding technologies. SAMPE Journal 42(1):4Google Scholar
- 3.Teemer L, Okoli O, Liang Z (2006) The effect of processing parameters on the mechanical properties of components manufactured using the resin infusion between double flexible tooling process. SAMPE ’06 Long Beach 51:9Google Scholar
- 4.Mattsson D, Joffe R, Varna J (2007) Methodology for characterization of internal structure parameters governing performance in NCF composites. Compos Part B: Eng 38(1):44–57Google Scholar
- 6.Timms, Mulchandani, Govignon Q and Bickerton S (2008) Identifying sources of variability in the mechanical performance of resin infused textile composites. The 9th international conference on textile composites (TexComp9), Newark, DEGoogle Scholar
- 11.Breard J, Saouab A, Bouquet G (2003) Numerical simulation of void formation in LCM. Compos Part A: Appl Sci Manuf 34(6):517–523Google Scholar
- 17.Yenilmez B, Senan M, Sozer EM (2008) Variation of part thickness and compaction pressure in vacuum infusion process. Compos Sci Technol 69(11-12):28Google Scholar
- 19.Klunker F, Aranda S, Ziegmann G et al. (2008) Permeability and compaction models for non crimped fabrics to perform 3D filling simulations of vacuum assisted resin infusion. The 9th International Conference on Flow Processes In Composite Materials, Montréal (Québec), CanadaGoogle Scholar