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Carbon over honeycomb

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Scheny

Well-Known Member
Joined
Feb 26, 2019
Messages
314
Location
Vienna, Austria
Hi!
Recently I read a paper about asymmetric composite thickness optimization, where it said you should use a coupling layer as ort of bonding help over honeycomb. They used an additional layer of 80g/m² of glass as it is "loosely woven" and therefore has alot of excess resin.

I checked some planes including the Extra 300 which is said to be one of engineerings finest and could not find any similar laminate.

Only thing I could find was a coupling layer which was utilized over prepreg carbon, as prepreg seems not to stick too well to hneycomb on its own.

I would be interested if any of you uses a coupling layer and why? (weight is of essence, so would rather not)

Best regards, Andreas
 
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