Simulation Study on Braided Hose Failure in Major Equipment at PETRONAS Carigali Sdn Bhd (PCSB)

In this study, the actual braided hose from Petronas Carigali Sdn Bhd (PCSB) was obtained in order to investigate the possible causes of failure. The hose is being assembled with inner tube of polytetrafluroethylene (PTFE) and externally braided outer tube corrosion-resistant steel (CRES). The actual prototype hose had undergone failures near the end of the fittings. The actual braided hose measurements were taken and modelled using SOLIDWORKS software. The ANSYS static structural stimulation was used to measure the stress distribution on the hose due to pressure applied with various bend shapes. The simulation was done by fixing the end of the pipe and exerting force inside the inner layer of PTFE. The results of the simulation have shown that the braided hose proved high stress near the fittings. Thus, the hose was unable to stand the pressure exerted, the reasons of failure was identified. Further analyses were done to the braided hose to investigate the other possible of failure using failure analysis method. A device was proposed to Petronas Carigali Sdn Bhd (PCSB) that can earlier detect braided hose failure.