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  1. GBIRLESPCH

    Carbon Fiber CTW Properties

    Thanks all for your answers guys, CMH-17 Volume 1, Chapter 2 does indeed have evidence that CTD is more critical than CTW, particularly for compressive strength with graphite/epoxy composites. Since this strength is partially matrix dependent, this must mean that something happens to the matrix...
  2. GBIRLESPCH

    Carbon Fiber CTW Properties

    I'm writing up the test plan for a carbon fiber composites aileron. The Cert Engineer is asking why I don't do cold temperature wet coupon tests. My only reply right now is that it's not critical compared to cold temperature dry, but I have no concrete evidence for that. Looking back on various...

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