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Shear Strength of Vinylester
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Shear strength of the bulk resin is quoted by resin manufacturers or calculate form G=E/2(1+v). Doesn't have a lot of practical use though. If after shear strength of a fibreglass laminated joint a figure of 7 MPa (100psi) glue bond area layup strength is used in many codes etc for CSM, with a safety factor of 4 (min) on top of this. Refer BS4994 or RTP-1 or FRP pipe codes. BS4994 has table for different FRP ply materials, or refer texts.
SWComposites
Aerospace
G = shear stiffness; it has nothing to do with shear strength. Strength in general cannot be calculated. See material vendor datasheets for typical properties. Typical shear strength of epoxy materials is in the 8-15 ksi range at room temp; vinylester probably has similar values.
racingcrazy
Aerospace
Contact your manufacturer. If they don't have this most basic of material properties, go somewhere else.
CompositeGeek
Aerospace
Lots of those processing values are listed in by commercial product name.
Composites and Airplanes - what was I thinking?
There are gremlins in the autoclave!
Composites and Airplanes - what was I thinking?
There are gremlins in the autoclave!
It depends on many factors, but I think a cloth reinforced panel with Vf = 50% and low voids should be in the 7-8 ksi range. I seen up to 12 ksi with epoxy/glass uni-broadgoods and generally vinylester has similar properties to an epoxy at room temp.
You want fibers in this resin, right?
You want fibers in this resin, right?
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