Talk Composites - The Forum for Advanced Composites

Infusing a laminate made up of Unidirectional Tow AND twill fabric

http://www.talkcomposites.com/Topic15257.aspx

By baja_patient - 2/25/2015 11:56:37 PM

Hi Guys,

Quick question, I have read several times that it is difficult/impossible to infusive unidirectional carbon, especially in a thicker laminate.

I wanted to create a landing gear for a model plane, and I woul make it approx 3mm thick, using BOTH carbon spread tow (about 25mm wide) and a couple of layers of a fabric each side (either a 200gsm canvas, 2x2 twill, or satin harness weave).

Would it be possible to do this in infusion with the fabric on both sides of the "uni directional core"? Or would the resin not flow and/or permeate?

Below is a picture to show a similar finished product, one is pure uni and one is a mix (like i am planning).

I assume they are done in wetlay. Which I suppose would also be possible, but a bit heavier and less stiff.

http://www.talkcomposites.com/Uploads/Images/dc8490e1-7b94-4759-b233-4110.png

Cheers People!
By brucethemoose - 3/15/2015 7:39:40 PM

Hi people, brand new on here and got a question for those who may know. I have aproject for a new manufacturing idea based on carbon fibre , I use the term loosely What I need to know is.

Imagine two circular sheets of fibre bonded together, using whatever materials best for the job.

When standing on its edge What would the compessive strength of this bonded disc in kilos before buckling or breaking.

Based on discs of 700mm diameter and 900 mm in diameter.

ANY info would be greatly appreciated not an idiot but the simpler the better for my inexperience head

regards

brucethemoose