Floating liquefied natural gas (FLNG) cryogenic hoses can be employed for the transmission of (LNG). Usually, U-shaped metal bellows applied as inner lining FLNG hoses. In installation, positioning and other working conditions, torsion is one main loads, torsional buckling instability a major failure mode current research, under loads has been investigated in detail, mechanical mechanism deform...

In this paper, an instability analysis of three-dimensional (3D) beams supported with 3D hinges under axial and torsional loadings is presented in the large displacement rotation regime. An exact field proposed based on central line orientation cross section consisting nine parameters corresponding to centroid movements rotations. The Cauchy–Green deformation tensor derived local coordinate sys...