Experimental analysis on thickness control of variable thickness composite laminates during autoclave process[J]. Acta Materiae Compositae Sinica, 2009, 26(5): 14-19.
Citation: Experimental analysis on thickness control of variable thickness composite laminates during autoclave process[J]. Acta Materiae Compositae Sinica, 2009, 26(5): 14-19.

Experimental analysis on thickness control of variable thickness composite laminates during autoclave process

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  • Received Date: September 10, 2008
  • Revised Date: November 11, 2008
  • Variable thickness laminates under different conditions were prepared with autoclave process for two types of carbon fiber fabric/epoxy prepregs. The consolidating process and the influencing factors of fiber distribution for the variable thickness laminates were investigated by measuring the structure of fabric in cured laminate,laminate thickness,fiber content,bleeding quantity and permeability of fabrics. The results showed that the fiber content in thick area was higher than that in thin area for cured laminates due to the two dimensional resin flow. The ratio of in-plane permeability to the permeability along thickness direction of G0827 unidirectional fabric was larger than that of G0803 satin fabric,resulting in that the fiber distribution in G0827 variable thickness laminate was more uneven. Fiber distribution without bleeder was uniform and it indicates that the two dimensional resin flow in the bleeder influences the fiber distribution remarkably.
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