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CF roll cage
55ant - 10/3/10 at 07:04 PM

hi guys, just looking around at various carbon fibre bits, came upon this, never seen a carbon fibre roll cage before, im sure some of you chaps have,

porche cage

mads - 10/3/10 at 07:14 PM

looks nice... wonder how light it is. At the South Brum meet on monday, we were discussing the merits of a CF propshaft. Would this rollcage not just snap if too much pressure is applied? Atleast with metal, it will bend but possibly retain some of its structure?

Btw, when I saw the title, i thought it was Omega (Alex) posting... he is CF mad!

blakep82 - 10/3/10 at 07:18 PM

quote:
Originally posted by mads
looks nice... wonder how light it is. At the South Brum meet on monday, we were discussing the merits of a CF propshaft. Would this rollcage not just snap if too much pressure is applied? Atleast with metal, it will bend but possibly retain some of its structure?

Btw, when I saw the title, i thought it was Omega (Alex) posting... he is CF mad!


id its good for F1 chassis! i'm guessing its a ali honeycomb cf sandwich. the best kind of sandwich yum

britishtrident - 10/3/10 at 08:33 PM

Actually CF is very brittle, F1 and aircraft structures are complex Kevlar & CF laminates sometimes with some glass fibre also..

blakep82 - 10/3/10 at 09:07 PM

i guess things have moved on a lot since damon hill and alain prost drove for williams my book just say aluminium honeycomb and carbon fibre

Canada EH! - 11/3/10 at 12:43 AM

Don't think about it for a Locost, needs metal shell to protect it.

indykid - 11/3/10 at 12:50 AM

well theres research into composite shells for tanks (as in ones with big guns on the front, not water tanks), but it certainly doesn't use carbon fibre. i think the report i found on it was using e-glass, but 3d cloth.

my dissertation's loosely based on composites and impact design and while i've not researched specific materials in too great depth, from what i've ascertained thus far, i can see that that's a bad idea. it might withstand the first roll, but what about the 4th or the 6th?
tom

[Edited on 11/3/10 by indykid]

alistairolsen - 11/3/10 at 08:42 AM

the problem with composites is the load paths. as long as in any crash the loads are axial it will be fine, but I have to confess the initial idea makes me squirm in my seat!

Liam - 11/3/10 at 09:47 AM

I think there's a good reason why it's the first CF roll cage in the world!

iank - 11/3/10 at 08:45 PM

"FIA approval pending 2009" hmmmmm, so not approved for any real racing then...

Badger_McLetcher - 12/3/10 at 11:54 PM

Must confess I'm not too taken with that idea...