Break-testing an improved composite lever arm

[@hackfleischkarl3718]

Tolles Video, ich mag es echt wenn man seine Bauteile auch noch prüft!

[@carbonarne675]

Tolles Ergebnis! Toller Bruch!

[@vanbeekzwart]

I expected it to crack on the long (left) side of the lever where the rod was connected. Strong material! Love carbon fiber!

[@jfairplane8520]

ok, but for how many ply ? What's your thickness ?

[@andreschavarria1450]

It's a sandwich with an Airex® core (5mm), pultruded graphite rods as caps (8×0.6 mm) and cnc machined carbon rings for the bearings (quasi-isotropic 5 mm full carbon). Everything covered with one 160 g/m² carbon layer. It gets as light weight as possible …

[@jfairplane8520]

@@andreschavarria1450 Interesting the used of rod.. I did bracket with 2ply 200g carb and 3fiberglass center.

[@andreschavarria1450]

@@jfairplane8520 I use a classical composite spar layout: caps for bending stress, covered core as a shearweb (±45° fibers). If you're interested in more information, I've been shooting a video on how to make them. It should be ready by next week …