Is there a way to calculate deflection on composite panels?
Or can anyone assist?
I need to make a 12mm thick composite plate 600mm in diameter which will not deflect with a 50kg load in its centre. It will also be subject to 260C and 9 bar in a steam autoclave (moisture ingress?)
Any help is appreciated.
No matter how strong/stiff of a panel you make it will deflect when a load is applied. What is the maximum amount of deflection allowed?
It is also important to know if the plate edges are simply supported or clamped.
Testing the aluminium original, a deflection of 2mm is acceptable.
The edges are free. It’s being held on by its centre.
Just use uni tape, shifting the angle each layer to allow an uniform tension of the radial loads on the whole panel.
12 mm. thick is quite enough to be in the 2mm bending allowance.
The real problem is the behavior in a so hot/wet environnment with time.
Now that I think about it a little more: isn’t it that a 9 bar pressure is a “little” more than 50 kg applied at the center?
I suppose the whole thing should be re-engineered a little bit.
Thanks Roberto. The autoclave pressure would be all around, so the 9 bar pushing behind the plate will negate the 9 bar on the other side.