Talk Composites - The Forum for Advanced Composites

Using Scrap Pieces in Layup

http://www.talkcomposites.com/Topic30595.aspx

By d3ntr0n - 10/5/2018 11:52:34 PM

I am laying up a part which is essentially half of a tube with an outer diameter of 18 inches. My reinforcement is 10 oz/sq yd fiberglass and I'm using vacuum infusion. My reinforcement pattern is +45, -45, 0, 90. My question is, how bad of an effect would it have on the strength of the part if for the second layer of 45 degree reinforcement, I used two large triangular scrap pieces to form the rectangular piece needed? The break between the two pieces would form a helical shape in the final part, and the layer made from scraps would be sandwiched between two continuous unbroken layers. Any input will be greatly appreciated.
By d3ntr0n - 10/8/2018 8:32:48 AM

 
Furrari - 10/8/2018 8:29:13 AM
Steve. That’s an awesome looking bit of work. I haven’t the experience to do that yet but I hope to one day. The project I am currently working on is too big to do in one without using a lot of cf. now the relevant bit. I’ve pinched some bodyelsees idea, I’m doing it in two parts of cf with one of them turned over so that the weave forms a V and then using five rows of 15mm tow across the joint. This both strengthens it and looks superb in the sun as the three patens catch the sun and flash. I hope this helps dn3 and alays his worry about joint pieces.M.

Hey man thanks for the input. I may be able to get some photos at some point.