How to Predict the Burst Pressure of a FRP Pipe

Abstract

The purpose of this paper is to illustrate how to predict the burst pressure of a FRP pipe or a cylindrical vessel, using the split-D tension test of the circular ring cut from them. Two modification factors must be regarded. The first one results from the additional bending stress in the region near the mid-plane. Two new mechanical models are suggested for calculating the bending stress mentioned above. The second factor is the influence of the material’s variability, which also results in the differences of the experimental data between the ring and the pipe. After considering these two factors, we give the predicted value from the split-D test of the ring, which satisfactorily agrees with the hydrostatic pressure of the pipe.