Mechanical interlocking realized through induction heating for polymeric composite repair

  • US 10,160,172 B2
  • Filed: 07/31/2015
  • Issued: 12/25/2018
  • Est. Priority Date: 08/06/2014
  • Status: Active Grant
First Claim
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1. A method of repairing a polymeric composite workpiece, the method comprising:

  • identifying a localized area of the polymeric composite workpiece having a defect;

    aligning a plurality of three dimensional interface structures having a tetrapodal shape to at least a portion of the localized area;

    applying a polymeric composite patch to the localized area such that the interface structures are disposed between the polymeric composite workpiece and the polymeric composite patch;

    introducing an alternating electromagnetic field to selectively induce localized heating of the interface structures; and

    softening regions of the polymeric composite workpiece and the polymeric composite patch adjacent the interface structures, causing the interface structures to penetrate a distance into both the respective polymeric composite workpiece and the polymeric composite patch.

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