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Stacked lamellate assembly

  • US 7,247,003 B2
  • Filed: 01/07/2005
  • Issued: 07/24/2007
  • Est. Priority Date: 12/02/2004
  • Status: Active Grant
First Claim
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1. A lamellate airfoil assembly comprising:

  • a stacked plurality of ceramic matrix composite lamellae each comprising a peripheral surface collectively defining an airfoil shape;

    a fastener applying a compressive pre-load to the stacked lamellae in a through thickness direction; and

    a plurality of shear force bearing structures separate from the fastener and disposed to resist sliding movement in an in-plane direction between adjacent ones of the lamellae, each shear force bearing structure in contact with a respective subset of the plurality of lamellae, with at least one lamella of each subset being part of another subset so that collectively the plurality of shear force bearing structures secure all of the lamellae against relative sliding movement;

    wherein the shear force bearing structures comprise a shear pin extending in the through thickness direction between the adjacent ones of the lamellae;

    wherein the shear pin comprises a clamp comprising a central web portion extending in the through thickness direction between the two adjacent ones of the lamellae and a flange portion at each opposed end of the web portion extending over the respective adjacent one of the lamellae.

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