Strength Analysis Modelling of Flexible Umbilical Members for Marine Structures

Table 1

Custódio and Vaz. umbilical cross-section.

Layer	Dext (mm)	Features
External sheath	94.0	Material HDPE, 𝐸=720 MPa, 𝜈=0.42
Outer armour	83.8	𝑁=56, round wires 𝑑=4.1 mm, lay angle −20 deg.
Inner armour	75.6	𝑁=50, round wires 𝑑=4.1 mm, lay angle = 20 deg.
Intermediate polymer	67.4	Material HDPE, 𝐸=720 MPa, 𝜈=0.42
8 hose bundle	52.4	𝑁=8, telescopic settlement
Soft fller	27.0	Polyurethane, 𝐸=720 MPa, 𝜈=0.420
Central hose	12.7	𝑁=1, lay angel 0 deg.