Not off the top of my head. The thing with carbon fiber structures is that its mechanical properties depend on thickness, resin type, fiber strength, weave type, and number of layers. I can try to find a strength or yield stress for it, but unless you are either wanting to know the wing maximum deflection or are taking the finite element method approach, it won't do much good. Its in the spreadsheet because I had originally intended to add maximum wingtip deflection to the spreadsheet, but I never got that far.