By congellous - 5/4/2012 8:01:18 AM
Hi I have designed and specified a panel system that has to be light with a high impact resistance and would welcome your comments on it's strength to cost and time, i.e if it's to belt and braces when something half the price would be 80% as strong
It's a double curved panel so the impact side is in compression
Externally gel coat mixed with talc filler - increased compression and impact resistance
Carbon kevlar mix fibre twill -45 degree +45 degree
Aluminium hex core 30mm
Carbon fibre twill
and or
Externally gel coat mixed with talc filler - increased compression and impact resistance
Diolen
End grain pro balsa 50mm
CSM
I intend to make a GRP female mold lay it up with vacuum bagging
My questions are
Do you glue the core to the inner/outer layer or piece it together when wet
The panels are sealed around the perimeter the core can't move anywhere ??
How do you accurately cut the hex core ?
Thanks
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By congellous - 8/14/2012 10:47:54 AM
After several test panels I have gone with framing the outside of the panel with end grain balsa to allow for fixings with Aluminum hex core
With weight, stiffness and impact resistance all being important I am toying with the idea of using a double sandwich as my 2.5 mm build up in Kevlar and Diolen feels to flexible as an outside layer
Any suggestions for this, I'm thinking 2 layers kevlar both sides on a 2.5mm coremat as the outer shell then the hexcore etc
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