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http://dx.doi.org/10.7782/JKSR.2015.18.4.301

Analysis of RTM Process to Manufacture Composite Bogie Frame Considering Fiber Orientation  

Kim, Moo Sun (Korea Railroad Research Institute)
Kim, Jung-Seok (Korea Railroad Research Institute)
Kim, Seung Mo (School of Mechanical Engineering, Korea University of Technology and Education)
Publication Information
Journal of the Korean Society for Railway / v.18, no.4, 2015 , pp. 301-308 More about this Journal
Abstract
To reduce the weight of a railroad vehicle, a bogie frame skin is considered for manufacture using an RTM process and composite material. Compared to other processes, RTM has merits in that it demands only simple manufacturing facilities and can produce a large and complex structure in a short cycle time. On the other hand, it is important to determine the proper number and locations of gates and vents to prevent void formation inside a structure. In this study, we numerically predicted the flow pattern in a bogie frame skin during the RTM process by distinguishing the permeability of a fiber mat as isotropic or anisotropic. Using the results, we analyzed the RTM process conditions of the bogie frame to predict skin void formation, mold filling time, and optimum location of vents depending on the permeability conditions.
Keywords
Composite; Bogie; RTM(Resin Transfer Molding); Permeability; Mold;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 D. Henry (1856) Les Fontaines Publiques de la Ville de Dijon, Dalmont, Paris, pp. 1-647.
2 B.R Gebert (1992) Permeability of unidirectional reinforcements for RTM, Journal of Composite Materials, 26(8), pp. 1100-1133.   DOI
3 P.K. Mallick (2008) Fiber-reinforced composites : Materials, Manufacturing, and Design, CRC Press, Boca Raton, pp. 377-449.
4 M.K. Kang, W.I. Lee, H.T. Hahn (2000) Formation of microvoids during resin-transfer molding process, Composites Science and Technology, 60, pp.2427-2434.   DOI
5 T.S. Lundstrom, B.R. Gebart, C.Y. Lundemo (1993) Void formation in RTM, Journal of Reinforced Plastics & Composites, 12(12), pp. 1339-1349.   DOI
6 R. Mathur, B.K. Fink, S.G. Advani (1999) Use of genetic algorithms to optimize gate and vent locations for the resin transfer molding process, Polymer Composites, 20(2), pp. 167-178.   DOI
7 A. Boccard, W.I. Lee, G.S. Springer (1995) Model for determining the vent locations and the fill time of resin transfer molds, Journal of Composite Materials, 29(3), pp. 306-333.   DOI
8 S. Jiang, C. Zhang, B. Wang (2002) Optimum arrangement of gate and vent locations for RTM process design using a mesh distance-based approach, Composites: Part A, 33, pp. 471-481.
9 K. Okonkwo (2010) 3D permeability characterization of fibrous media, MS Thesis, University of Delaware.
10 J.S. Kim, W.G. Lee (2012) Manufacturing and structural behavior evaluation of composite side beams using autoclave curing and resin transfer moulding method, International Journal of Precision Engineering and Manufacturing, 13(5), pp. 723-730.   DOI   ScienceOn
11 I.K. Kim, J.S. Kim, S.I. Seo, W.G. Lee (2013) Dynamic property evaluation of four-harness satin woven glass/epoxy composites for a composite bogie frame, Journal of the Korean Society for Railway, 16(1), pp. 1-6.   DOI   ScienceOn
12 P.C. Carman (1956) Flow of gases through porous media, Butterworths, London, pp. 1-33.
13 M.K. Kang (1997) A numerical and experimental study on mold filling and void formation during resin transfer molding, Ph.D Thesis, Seoul National University.