Stability of filament-wound hyperbolic flexible pipes under internal pressure based on non-geodesic winding

• DOI: 10.1038/s41598-021-85326-y
• Publication Date: 2021-03-15T11:03:41Z
• Authors: Guo-min Xu; Chang-geng Shuai
• Keywords: Slippage; Filament winding; Internal pressure

Abstract Filament-wound flexible pipes are widely used to transport fluid in pipeline systems, proved extremely useful marine engineering. The hyperbolic have good vibration suppression performance, but they easily deformed under internal pressure. This paper focuses on the stability of based composite Reissner shell theory and transfer-matrix method. nonlinear stretch reinforced filament fiber bridge effect considered model. calculation results show that a large winding angle reduces deformation meridional stress. available initial is limited by geometry slippage coefficient pipe. high tensile modulus will reduce Compared with geodesic trajectory, non-geodesic trajectories improves theoretical result verified finite element analysis. investigation method present this guide design optimization more novel future.