ON STRESSES AND FATIGUE IN FLEXIBLE PIPES

The main purpose of this work is to improve existing methods for stress and slip analysis of nonbonded flexible pipe armouring layers and to contribute to better understanding of the flexible pipe behaviour under dynamic loading. A finite element formulation has been developed solving the equilibrium equations for one armouring tendon with arbitrary loading and boundary conditions. Several case studies have been carried out both to verify the accuracy of the model and to investigate different physical effects, giving better understanding of flexible pipe behaviour. Results from the present model have also been compared with corresponding calculations by other more simple methods. The main conclusion from this investigation is that the existing models cannot be used to predict stresses in the end fitting region and that they will give conservative estimates for relative displacements and wear.

• Supplemental Notes:
  • Norwegian Inst Technology, Dept Marine Structures, MTA-rpt 1992:90 [201 p, 75 ref, 16 tab, 66 fig]
• Authors:
  • Saevik, S
• Publication Date: 1992

Language

• English

Subject/Index Terms

• TRT Terms: Dynamic loads; Flexibility; Pipe; Structural analysis
• Uncontrolled Terms: Flexible pipes
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00704280
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM