..., seriously affecting the safe operation of submarine pipelines. The study of failure and limit load capacity of submarine pipelines under external pressure and bending moment is of great significance. In this paper, the nonlinear finite element method is used to study the collapse failure and local buckling...

... and collapse under severe loading. As typical damage of the pipeline, the local dent of the lined pipe involves the deformation of both the carrier pipe and the liner, which poses a severe threat to the integrity of the composite structure. In this paper, we developed a numerical framework to study...

...EFFECT OF INCLUDING THE BAUSCHINGER PHENOMENON IN THE FORMULA FOR COLLAPSE PRESSURE OF THIN-WALLED PIPES Alastair Walker Ruud Selker Ping Liu Advanced Mech. and Eng. Pty. Ltd INTECSEA INTECSEA Perth, Australia Delft, The Netherlands Delft, The Netherlands Erich Jurdik South Stream Transport B.V...

... has also been exceeded without whipping. The ultimate collapse strength has been assessed and compared to the measured dynamic loading and allowable still water loading. When whipping is assumed fully effective to contribute to collapse, the safety margin is still above 1.0, but on the borderline...

... Whereas the wall thickness for most pipelines is governed by internal pressure, the wall thickness of pipelines at very deep waters may be governed by external pressure and the failure mode is collapse. This paper will firstly summarise the work performed in the early 90ties in the SUPERB...

... The present paper brings together theoretical predictions and experimental results, comparing crushing tests results as well as carcass wet collapse tests. The theoretical models are of two kinds: (i) numerical (FE) and (ii) analytical. The first kind is a restricted 3D version of a finite...

.... FPSO Collision damages Residual strength Ultimate capacity Collapse Post-collapse Finite element analysis Nonlinear Benchmark study Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering OMAE2009 May 31 - June 5, 2009, Honolulu, Hawaii ve , E Mar...

... This paper presents analysis method and key results from dynamic simulations of a drilling riser on 1900 metres water depth after release of upper end. Key results are the geometry of the collapsed riser on the seafloor (footprint) and the impact speed of the riser when hitting the seafloor...

... pressure is determined by the proposed method. 07 10 2008 Offshore Pipeline Local Buckling Collapse Buckle Propagation Inner Fluid Proceedings of OMAE2006 25th International Conference on Offshore Mechanics and Arctic Engineering June 4-9, 2006, Hamburg, Germany numerical results...