PPRuNe Forums - View Single Post - bonding 2 pieces of ali?
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Old 3rd May 2009, 23:09
  #23 (permalink)  
blakmax
 
Join Date: Jul 2008
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Rivets???

You are right DS. Provided tracker69 gave the joint a decent overlap, then almost any adhesive should provide a joint that will be stronger than the metal. Do not use average shear strength to design the overlap. Lap-shear strength quoted in data sheets is a meaningless parameter. As a broad rule of thumb, the overlap needs to be 30t for a double sided joint and 50t for a single sided joint.
For 0.032 2024 T3 that joint should carry over 2000 lbs. If you rivet it, I guess that you would not even get near to 1500 lbs. Glue it, don't screw it!
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