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Old 05-03-2014, 02:48 AM   #16 (permalink)
Thenorm
EcoModding Apprentice
 
Join Date: Oct 2013
Location: Canada
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Quote:
Originally Posted by freebeard View Post
Thenorm -- Could you comment on composite panels of the Polymetal/Alumipanel/Grimco MaxMetal type?

I've done experiments hand shearing, rolling, and braking Polymetal. And I'm working on through-fastners.
my knowledge on those products is only limited to the physics behind them. I havent used them. however i can tell you that their stiffness in bending is related to the distance between the 2 skins and the thickness of the skins. the honey comb or foam in between carries very little load and is just a spacer.

Quote:
Originally Posted by TomCat60 View Post
Yes I been researching some and fiberglass is a really valid option. Cost wise its a no brainer. $6 a yard versus $40 a yard for carbon fiber.

Now if I used a fiberglass mat like this it seems it would be possible to use one layer of fiberglass on a 2 inch foam board and would be much more cost effective. Have a look at this thick matt and tell me if I am on the right track ok ?

DBM 1708 Biaxial Specialty Fabrics

I have worked with fiberglass a few times rebuilding a corvette fiberglass body so I have a good idea how it all works ! But never carbon fiber !

Tommy
im havent done much glassing, and not on that scale. my knowledge is more academic. however the bi-axial weave is good. strength in 2 directions. since the foam board can carry a large portion of the load, the glass is going to be for weather proofing and finish and 1 layer might work.
HOWEVER, i am not an expert in glass fabrication i encourage more research.

now, if there are any questions on metals/ metallurgy and refining, those are my real specialties.
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