... characteristics of helical components are investigated. Axial stress in the tensile armor wires is particularly studied. Software program UFLEX is used for the investigation. INTRODUCTION Offshore power cable in this paper refers to the power transmission lines in offshore oil and gas and offshore wind...

... output of the riser digital twin analysis model helps updating the regular maintenance program that is defined and executed starting from the commissioning/ producing first gas to the decommissioning. subsea system axial stress vessel motion machine learning inclination angle riser analysis...

... axial stress upstream oil & gas numerical simulation different length long pipeline Effect of Initial Imperfection on the Global Buckling of Submarine Pipelines with Different Length Run Liu 1, Chengfeng Li 1, Xinli Wu 2 1. State Key Laboratory of Hydraulic Engineering Simulation and Safety...

... brace real time system lateral side downstream oil & gas intermediate section sensitivity analysis tail section sensitivity value hitch maximum tensile stress stiffness analysis axial stress stinger real-time monitoring safety upper chord offshore pipeline sensitivity...

... bitumen-coated armor wire subsea system armor wire capacity criterion axial stress proceedings subsea power cable cable viscoelastic property cross section controls and umbilicals curvature upstream oil & gas angular frequency armor wire stress bitumen frequency cable tension complex...

... = Hydroelastic bending stress contribution, in MPa VAF,i = Axial stress contribution from axial end force, in MPa VMAF,i = Bending stress contribution from axial end force, in MPa L = Rule length, in m B = Beam moulded, in m BD = Buoyancy per meter, in tons/m D = Depth moulded, in m, to upper deck E = Young s...

... properties including axial, torsional and bending stiffness. Fig. 3 illustrates a typical bending moment curvature relation. Figure 3 Bending moment (axial stress) curvature relation The trend line at small curvature indicates large bending stiffness which often complies with the plane surface assumption...

... nonlinear analytical and numerical solutions show the perfect accuracy of the method. orynyak basic parameter axial direction deformation pipe straight pipe procedure curvature displacement iteration upstream oil & gas axial stress contour coefficient equation axis cross section...

... Abstract Pressure equipment used in the oil and gas industry is typically subjected to multiple loads (internal pressure, axial stress, global bending). Its strength may be degraded over time due to the development of corroded areas known as Locally Thinned Areas (LTAs). In this study...

..., this study in 1976-80 changed the industry's common perception of bending stress as design stress: The axial stress can be an order of magnitude larger than the bending stress for such a long pipe, and the bending is less of an issue. This paper presents the axial stress amplitudes, including amplification...

... deep into the Earth to observe the earthquake mechanisms because there is one of the most active earthquake zones. nishigaki hoop stress guide horn consideration nankai trough upstream oil & gas drill pipe selection axial stress drillstring design drill string drilling operation...

... gauge liner wrinkle test sample friction axial strain bonding test tfp small wrinkle axial compression compression test result axial stress pipe liner pipe outer pipe metals & mining Experimental Research on Local Buckling Behaviour of Tight Fit Pipe E.S. Focke, Heerema Marine...

... of the parametric study, fatigue calculations of the uniplanar K-joints are made. NOTATION MF br Magnification factor for brace axial stresses to account for secondary stresses MF ch Magnification factor for chord axial stresses to account for secondary stresses Sr (b) Hot spot or geometrical stress range...

... are required. Hence, this paper deals with a three-dimensional finite element (FE) model to predict the local mechanical behaviour of flexible risers. upstream oil & gas pressure armour mesh flexible riser axial stress armour fe model tensile armour contact pressure plastic sheath...

... deformation internal pressure pipe axial stress failure mode equation of state ovalisation thickness effective axial force cross section plastic load Proceedings of the Eleventh (2001) International Offshore and Polar Engineering Conference Stavanger, Norway, June 17-22, 2001 Copyright © 2001...

.... In the case of a flat beam, lateral load is resisted by the bending and shearing actions. Certainly axial stress is not generated in this situation. Also, shearing action is often neglected because of its magnitude is very slight as compared with the bending action. In the case of a pitched beam, as the pitch...

... formulae (beam theory for the axial stress and boiler formula for the hoop stress). The semi analytical/numerical method only differs from the first approach in the method for calculating the stresses in the tank wall. The hydrodynamic pressures calculated with the formulae from EC 8 are now used...

... to combined axial, bending, and hydrostatic loads. How to combine the axial and bending stress is an important issue because it affects the computations of IR and UR significantly when the bending stress is not negligible. The conventional method simply adds the maximum axial stress and maximum bending stress...

... ABSTRACT In order to reduce the axial stress produced in the pipe string, multi-stepped pipe strings are taken into consideration. Then, their longitudinal vibrations as well as axial stresses caused by the ship's heave-motion are theoretically analyzed. The results obtained are compared...

... of Longitudinal Vibration and Axial Stress Caused in Pipe String for Mining Manganese Nodules in Deep Sea Yoshikazu Kobayashi, Goro Obinata and Kazuo Aso Akita University Akita, Japan ABSTRACT In order to reduce the amplitude of longitudinal vibration as well as the axial stress induced in the pipe string...