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Designing with Sandbags

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wanttobuild

Well-Known Member
Joined
Jun 13, 2015
Messages
1,538
Location
kuttawa, ky
Someone mentioned this method, I believe the gentleman from NC, but this method allows a guy with a GED to do a little designing.
Continuing the HoneyHawk LSA theory, a 1320 gross strut braced wing, how many sandbags do I need to pile up on the wing to simulate, oh say 6g+? 4g-?
Could get expensive, and a lot of work to optimize, but if I start with the correct scheme, I could get lucky.
How much deflection should I see and what is acceptable?
I think I could just count the bags I see in other tests, but just wanted to run this by you guys.
I can set up the test for the for the pos and neg g.
How about a test I haven't seen, where the wing leading edge is pointed up. How many bags do I load? Load till I see the skin start to buckle. No problem but I don't know how to quantify the results.
This would also test the bond between the skin and honey rib. This is a lot of simulation, but is the only method that would allow me to continue.
Ben
 
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