smart51
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| posted on 10/3/08 at 12:57 PM |
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Crash absorbing structure
There's plenty of room in my new project for crash absorbing structures both front and rear. The problem is that google can't find any
useful information. You guys seem to know everything between you, so any suggestions, hint, tips or nuggets of knowledge?
No, I don't plan to crash but I do plan on surviving one.
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Mr Whippy
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| posted on 10/3/08 at 12:59 PM |
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big blocks of foam with a glass skin, just like a car bumper 
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nib1980
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| posted on 10/3/08 at 01:01 PM |
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it takes me about 40-60 crash cars to make a suitable crash structure, for who i work for
sometimes we can make things worse when they seem better.
I'd just concetrate on making a survival cell and let everything else fall off in a crash
I wish you luck in designing a good one for you kit
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russbost
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| posted on 10/3/08 at 01:25 PM |
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Put in some lightweight tube structures without much in the way of triangulation, you want the tubes to crumple in a direction linear with the centre
of the car, they should be triangulated so they don't just lozenge sideways, other than that the squashy foam or polystyrene blocks work well
but need some method of location. HTH
I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator
headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names
furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours.
http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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smart51
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| posted on 10/3/08 at 02:19 PM |
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quote:
Originally posted by nib1980
I'd just concetrate on making a survival cell and let everything else fall off in a crash
I've done that. There is spare room so I want to fill it with something. I understand that I won't make the best possible structure but
I do want to make the best I can.
Foam sounds good as it is light. I guess you want a stiff backing to it (so it doesn't snap) and some sort of front sheet to spread the load.
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turbodisplay
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| posted on 10/3/08 at 02:27 PM |
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I stuck pu foam (expanding foam from a can) between a fiber glass backing, and the actual bodywork.
I then fibreglassed to and bottom to seal the foam in. As the foam sticks to the fibreglass it is a bit like cheap honeycomb.
If made the bodywrk much firmer as well as it is no longer a 2d shape.
Darren
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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novacaine
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| posted on 10/3/08 at 06:05 PM |
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perhaps some aluminum foam,
not sure how commonly used it is but is brilliant for energy absorption, could easily be used in a car....
And you run and you run to catch up with the sun but its sinking, Racing around to come up behind you again, the sun is the same in a relative way but
your older, shorter of breath and one day closer to death
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smart51
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| posted on 10/3/08 at 06:11 PM |
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quote:
Originally posted by novacaine
aluminum foam,
Where do I get this wonder material? eBay doesn't have any and google doesn't show up any quick hits. Is it locost?
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