1-20 of 49
Keywords: external pressure
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2179
... be important for pipelines in intermediate water depths. Collapse is the failure mode where the pipe cross section becomes unstable due to excessive external pressure acting on the pipe wall. It is typically viewed as buckling or bifurcation behaviour because the cross section will deform significantly only...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2180
... below 15 that are subject to external pressure and bending, without affecting the level of conservatism underlying the code framework. The limit-state formulation for load-controlled behaviour is found to be increasingly conservative for thicker pipe walls. INTRODUCTION Background Intecsea reviewed...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-445
... ABSTRACT This paper proposes an estimated formula for the tripping buckling strength of the ring-stiffener attached in stiffened cylindrical shells under external pressure. The proposed formula is derived assuming the tripping buckling as the buckling of only the flange supported by springs...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-115
... and/or corrosion of the wall, on the buckling/collapse load bearing capacity. american petroleum institute pipeline corrosion torisphere external pressure apex wall thickness load bearing capacity dome flaw materials and corrosion sc stot 0 flowline corrosion buoyancy unit mpa thickness...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-662
... compression on contact stress of sealing structure of the casing coupling section is numerically analyzed. The results show that the combined loads of axial tension, internal and external pressure difference and extruding force will make contact stress of the sealing structure of casing coupling change...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-162
... Collapse behaviour of offshore pipelines under external pressure is a primary concern for ultimate limit state design structural integrity. The pipe-in-pipe system, consisting of a concentric insulated inner pipe and outer pipe, has wide applications in offshore pipelines. Under the external hydrostatic...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-113
... The ultimate strength on steel welded ring-stiffened conical shell have not been studied in detail to the best knowledge of the authors. Although the strength and stability of the conical shell under external pressure has been the subject of a long history dated back as early as 1950's (Raetz and Pulos, 1958...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-482
... ABSTRACT With the improvement of welding technology, applications of electric resistance welded (ERW) pipes have been extended to offshore pipelines. A main design factor for offshore pipelines is resistance to external pressure. The structural performance is affected by influence variables...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-426
... combined external pressure and bending moment based on a solid element model. And the strength analysis and buckling analysis are performed. The classical structure of RTP is composed of three main components: an inner high-density polyethylene (HDPE) liner, middle reinforced layers made of thermoplastic...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-490
... external pressure auxetic composite pipe auxetic material upstream oil & gas indentation resistance Advanced Composite Structures for Subsea Pipeline Design Development Naveen Ravirala and Paul Jukes The Jukes Group Houston, TX, USA ABSTRACT Advanced composite materials have the potential...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-665
...) (2007). However, an investigation of the applicability for cold formed pipes with rounded stress vs. strain curves is not necessarily apparent from previous researches. formula fea diameter elastic collapse pressure upstream oil & gas external pressure relation thickness ratio strain...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-384
... design process for this specific kind of pipe is illustrated. Three formulas for calculating the individual strength capacities of the pipe when subjected to internal pressure, external pressure and pure bending are presented for initial screening assessment. And then a case study for an 8 inch metallic...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-666
... strain capacity line pipe compressive ys tensile ys collapse resistance neutral position ss curve strain concentration stress generate curvature radius external pressure Mechanical Properties and Performance Prediction for HF-ERW Line Pipes Reel-laid Eiji Tsuru1, Hidenori Shitamoto2...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-259
... of SSRTP under combined bending and external pressure are investigated experimentally and numerically. The procedures for Bending-Pressure loading test of SSRTP are presented in details. The collapse response of SSRTP as a result of the combined loading is simulated by using the commercial software ABAQUS...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-693
... numerical parametric studies have been performed Van Es (2014 and 2016) and Vasilikis (2016). curvature equation infill normal force calculation diagram normality principle ovalisation residual stress coil connection weld external pressure tube wall soil load curvature diagram plate...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-362
... and measuring equipment and high technology devices, covered and protected by either one or multiple cylindrical pressure housings. The main loading to which these pressure housings are subjected during the deep sea operation is the hydrostatic external pressure, which elevates as the operational depth...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-239
... experimental data. galletly torisphere legendre polynomial sensitivity magnitude blachut amplitude initial geometric imperfection upstream oil & gas external pressure dome geometry buoyancy unit indentation dimple imperfection lower-bound curve strength inward dimple Buckling...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-210
... of chemicals. Pipe is prone to local collapse during pipe lay. However, irrespective of how it is induced, it usually will initiate a propagating buckle under external hydrostatic pressure. Buckle and collapse due to external pressure play an important role in the design of deepwater pipeline. As a result...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-784
... Abstract Line pipes installed via reel laying (R-lay) must exhibit collapse resistance to external pressure in addition to deformability during reeling and unreeling processes. In this study, we analyze the collapse resistance, collapse pressure, and collapse mechanism of line pipes...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-585
..., deep-water applications introduce increasing complexity due to the high external pressure. Currently, guidance available for the design of such bends is based on attributing the moment capacity of the straight pipe to a bend with the same cross-section geometry and exposed to the same environmental...

Product(s) added to cart

Close Modal