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  1. Klompder

    Lightning protection of aircraft made of composite materials

    You might wanna try Eccobond 56C/Catalyst 9, that's what we use as a conductive adhesive. You can contact Eccobond is tradename, so you can ask your resin/adhesive supplier on more details. I cannot assure that it will also bond to your specific aluminum foil, but I would think it should. Good luck.
  2. Klompder

    Loads on Shear Cleats (fuselage frames)

    I agree with the previous replies and like to add that the hard points in the stringer stiffened skin are at the stringer - frame junctions. At these stiffer locations the highest restraint will occur and one can see that the considered cleats are connected to the stringers as well as the frame...
  3. Klompder

    Bearing bypass stress in skin with countersunk fasteners

    Philwi, The factor for the countersink is incorporated in the test coupon configuration by using the applicable CSK fasteners. Normally the joint bearing stress allowable "p" is derived from the results of the test specimen configuration(s) by application of statistical and other procedures on...
  4. Klompder

    Strength of out-of-round cold worked bush

    Rb1957, I know and agree with your remark on the FTI bush, my idea exactly. Unfortunately the design is fixed, but I've made the same comment too. With production set-up I meant the same as you; installation issue.
  5. Klompder

    Strength of out-of-round cold worked bush

    Thank you RB & Fastmouse, It was indeed a production concession on a part for which we do not have repair authorization ourselves. Indeed time is tight and apparently this particular bush was not fatigue critical. For this case our proposed repair of reaming up and installing oversize bearing...
  6. Klompder

    Strength of out-of-round cold worked bush

    Hi there, I'm currently facing an out-of-round reamed up Cold Worked Flange Bush (FTI). The remaining wall thickness after further reaming up for the repair bearing will be about 0.055 inch (1.4mm), about half of the "design" thickness of min. 0.1 inch. My question is what the strength...
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