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Composite material support structures with sinusoidal webs and method of fabricating same

  • US 6,520,706 B1
  • Filed: 08/25/2000
  • Issued: 02/18/2003
  • Est. Priority Date: 08/25/2000
  • Status: Expired due to Term
First Claim
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1. A support structure, comprising:

  • a laminated web formed from composite materials and having a longitudinal edge and an undulated profile extending in a longitudinal direction;

    a preform with a pi-shaped cross-section formed from composite materials, having a base oriented in a first direction with a pair of legs extending integrally from the base in a second direction that is substantially perpendicular to the first direction to define a channel therebetween, wherein the preform is formed from woven or braided tows of fiber that extend continuously through the base and both of the legs; and

    wherein the longitudinal edge of the web is mounted in the channel.

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