Development of high‐pressure composite butt‐weld joints

Abstract There is currently a need to develop High‐pressure composite butt‐weld joints to meet the needs of deepwater activities. In this study, a tapered butt‐weld composite joint configuration is proposed. Finite element analysis was conducted to validate the proposed structural configuration through stress‐strain distribution analysis. Test samples were assembled using the hand lay‐up technique. The prepared specimens were hydro‐tested. The test results justified the proposed joint configurations. An approximate 35.7% increase in bursting pressure in the tapered butt‐weld composite joint was observed over currently used composite butt‐weld joints.