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METHOD AND APPARATUS FOR FABRICATING HIGHLY CONTOURED COMPOSITE STIFFENERS WITH REDUCED WRINKLING

  • US 20120076989A1
  • Filed: 09/23/2010
  • Published: 03/29/2012
  • Est. Priority Date: 09/23/2010
  • Status: Active Grant
First Claim
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1. A method of fabricating a substantially wrinkle-free fiber reinforced composite stiffener having an out-of-plane curvature, comprising:

  • providing a tool having the desired out-of-plane curvature and a corresponding in-plane curvature;

    forming a lay-up over the tool by laying up a plurality of fiber reinforced composite plies over the tool, including conforming the plies to the out-of-plane curvature and to the corresponding in-plane curvature of the tool; and

    compacting the lay-up.

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