Talk Composites - The Forum for Advanced Composites

CF reinforced timber beam

http://www.talkcomposites.com/Topic27104.aspx

By 21TonyK - 5/27/2018 3:39:37 PM

Hello All. I'm looking for whatever info, advice or even just comments I can get on creating a laminated composite timber beam.
It's part of a student project comparing the structural properties of timber vs. laminated timber vs. laminated composite/timber 
The test beams are 1/4 scale so approx. 40mmx90mm and a metre long.

It would be simple enough to incorporate a single piece of pultruded CF but I'd like to try layers of cloth between each of the 10 timber lamellas.

Any suggestions on the composite material and resins or adhesives much appreciated!

Many thanks


By 21TonyK - 7/2/2018 3:25:59 PM

As a follow up here's the new plan.

Use pre-cut 4x25mm timber strips in 8 laminations 900mm long, between lamination 7 & 8 add 10 layers of 25mm unidirectional tape. Bond everything with a slow cure epoxy and clamp every 100mm.

Things I am a bit concerned about is getting 10 layers of tape evenly in place as opposed to a single pultrusion and the whole thing sticking to the clamps etc as its going to be smaller than first thought, 25mm x 32mm.

Any comments?

Thanks