Simplified analyses of a fiber-reinforced plastic joint for filament-wound pipes

A simplified analysis procedure is described for a fiber-reinforced plastic (FRP) stub-flanged joint which addresses some of the problems with current FRP joints. The joint consists of a tapered hub that is filament-wound with the pipe. A separate stub is used to connect the two halves of the joint. This system avoids material discontinuities at the flange-pipe intersection and pull-back of the flange, The joint is modeled following the Taylor Forge approach used in metallic joint analysis. The analytical model is verified using finite element analysis; the results are in excellent agreement.