to determine the limit of wall-thickness and properties mismatch for safe serviceability when joining high strength grades with high Y/T to lower strength grades with much lower Y/T, and
to…
This report presents the results of an one year program carried out at the University of Texas and funded by the PRCI, in which factors affecting pipe collapse due to external pressure were studied. The study concentrated on pipes with low diameter…
PUPA is a computer program which predicts the critical loads of a long tube under external pressure and axial tension. The program takes into account the effect of inelastic material behaviour on collapse and could be used for tubes with diameter to…
The results of this project developed plastic collapse solutions for girth-welded and welded sleeve assemblies with circumferential cracks. The first phase of this project involved nonlinear finite element analysis (FEA) of pipes with circumferential…
The design of deep water pipelines must consider external pressure loading which is applied to the line during construction or in service when the line is evacuated. A collapse failure can occur due to this external pressure alone or external…
The feasibility of laying offshore pipelines in deep waters, to 3000 feet and beyond, has been established by theoretical studies by a number of different individuals and organizations over the past several years. These various theoretical studies…