I’m designing a carbon fiber part for school and was going to add in some aluminum inserts for a shaft that will be loaded perpendicular to the shaft and parallel to the carbon. Does anyone here know of a good way to model this? I was planning on adding the inserts pre-cure. I was thinking if I knew the bond strength between the aluminum piece and the epoxy then I could pretty easily calculate the surface area necessary. I know this will be specific to the epoxy I use, but I was wondering if there were some approximate values in the literature somewhere that I could use with a healthy safety factor. I’ve already looked up the product data sheet for the epoxy, but no luck. I figured I would give the manufacturer a call and see what they said, but I thought I would see if anybody else here has done this. I suppose I could set up a test on the instron, but at this point the project doesn’t need any more set backs :). Thanks.
Not sure if it helps but a have a PDF on aluminum surface finish and bonding strength. It may give you some clues on how to calculate the strength or preparation of the AL piece.
Hope it helps
That was an interesting read. The bond shouldn’t be exerting a peeling force as in the write up and I’d like to be able to just insert the piece into the laminate. It does look like that I should have the inserts acid etched and anodized though, so that is good to know.