Marine flexible pipe/cables, such as umbilicals, flexible pipes and cryogenic hoses, are widely adopted in ocean engineering.The reinforcing armor layer in these pipe/cables is the main component for bearing loads, which is a typical multi-layer helically wound slender structure with different winding angles for different devices.There has been no general theoretical methodology to Magnesium Glycinate describe the tensile performance of these flexible pipe/cables.This paper first introduces a theory to solve the tensile mechanical behavior of a helically wound structure.
Based on the curved beam theory, a solution of the tensile stress of a helically wound slender is derived.Then, the deformation mechanism of the marine flexible pipe/cables structure with different winding angles is studied.Through comparing theoretical and numerical results, the deformation characteristic of the helically wound slender structure is further explained.It is found that a sectional torsional deformation generates when the structure with a larger winding angle is under tension condition, while Disposable Masks the sectional deformation of the structure with a smaller winding angle is mainly tension.
Finally, a couple types of marine flexible pipe/cables under the tension condition are provided to analyze the mechanical performance and compare the difference between different theoretical models.The research conclusion from this paper provides a useful reference for the structural analysis and design of marine flexible pipe/cables.