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Multiple face sheet isogrid structures

  • US 6,286,289 B1
  • Filed: 12/08/1999
  • Issued: 09/11/2001
  • Est. Priority Date: 12/08/1999
  • Status: Expired due to Fees
First Claim
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1. A fabricated structure for use in load bearing applications, comprising:

  • a) a plurality of parallel face sheets of rigid material with weight reducing holes in said parallel face sheets, b) a plurality of stringers constructed from flat rigid material with weight reducing holes in said stringers, c) each said stringer having joints for attachment to said face sheets, d) an equalaterial triangular pattern of openings in each said face sheets, e) the geometry of said openings formed to match the geometry of said joints, f) said joints of said stringers aligned to said openings in said face sheets so that said joints fit into said openings in said face sheets and said stringers form an equalaterial triangular array between said face sheets, g) said stringers joined to said face sheets at said joints, whereby a light weight and strong structure is made that is suitable for use in loadbearing applications.

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