CFRP strengthening of steel pipe elbows subjected to cyclic loading

Abstract

In order to ensure safe operation and structural integrity of pipeline and piping systems, it is sometimes necessary to strengthen specific sections of pipelines and piping systems. Recognizing the variety of mode failures of pipelines and piping systems when loaded by extreme external loads, the present study aims at investigates the mechanical response of pipe elbows wrapped with Carbon Fiber Reinforced Plastic (CFRP). A set of experiments is performed on reinforced and nonreinforced pipe bend specimens, subjected to low-cyclic fatigue. The experimental work is furthermore supported by finite element analysis. © Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE.