... collapse pressure equation pipe wall offshore pipeline assumption cross-section plastic collapse pressure midstream oil & gas hoop stress wall thickness dnv formulation external pressure formulation bifurcation pressure thick-walled pipe thick-wall assumption Proceedings of the Thirty...

... software grtgaz computational modeling transmission pipeline overload offshore pipeline computation loading pipeline bedding effect midstream oil & gas hoop stress deformation Analytical, Experimental and computational modeling of overloads above on-shore and off-shore buried gas...

... is compared against the analytical models available in BS7910. axial stress compressive axial stress corroded pipeline criterion equation lta axial tensile stress assessment loading compressive side failure criterion structure subject internal pressure loading condition hoop stress axial...

... midstream oil & gas lateral eca internal pressure biaxial adjustment upstream oil & gas offshore pipeline reference stress solution strength adjustment method hoop stress Engineering Critical Assessment of Pipeline under Axial Straining with Internal Pressure T Sriskandarajah and Daowu...

...-drilling method pipe girth weld welding numerical prediction upstream oil & gas welding residual stress surface path piping simulation inner surface residual stress axial residual stress hoop stress welding simulation hydraulic fracturing piping design weld girth weld plasticity...

... models assumed that the circumferential stress from internal pressure was 80% of the specified minimum yield strength (SMYS) of the pipe, the pressure factor allows the calculation of strain capacity as a function of pressure that results in hoop stresses from zero to 80% of SMYS. Additionally, ranges...

..., the Y/T ratio and the uniform elongation. The hoop stress and the D/t ratio of the FE models were assumed based on the information from some pipeline projects. The geometric initial imperfections of the linepipes were also taken into account in the FE models in order to predict critical compressive...

... 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...

... performance concrete fatigue design schaumann displacement grouted joint connection transfer function university strength support structure procedure shear key renewable energy research project diameter hybrid connection ring flange wind energy hoop stress performance concrete Design...

... gas metal arc welding (GMAW-P) girth weld geometries. The FEA results confirm that biaxial (pressure) loading can have a significant effect on crack driving force. The FEA results also indicate that the maximum biaxial effect occurs at a pressure induced hoop stress of approximately 50% specified...

.... Before going into production, the industrial client wanted to know if a proposed annealing step was effective. Because the deformation will be primarily in the hoop direction, the hoop stresses, or the corresponding strains can be expected to exhibit the largest response. Hoop strains were measured...

... an appropriate design would preclude any failure, it is desirable to have an additional insurance against loads greater than those predicted during design. utilization ratio efficiency stiffener plate thickness hoop stress hierarchical order test data external pressure cylindrical shell upstream...

... and outer pipe [1/°C] DeL;n-m Change in hoop strain in liner from step n to m DeO;n-m Change in hoop strain in outer pipe from step n to m sL;0.5% Stress in liner at 0.5 % strain (eL;0.5%) [N/mm2] sL;y Yield stress (at yield strain (eL;y)) of liner [N/mm2] sL;n; sO;n Hoop stress in liner and outer pipe...

... that was analyzed, uniform tensile properties were assumed in the weld, HAZ, and parent pipe. Analyses were performed for internal pressure levels corresponding to hoop stresses of 35, 0, 35 and 70% of the parent pipe yield strength. The results of the analyses are presented in Figure 2 as a plot of hot spot...

... Resistance de-rating factor due to fabrication process x Curvature o Poisson's ratio o'h Hoop stress trhl Limit hoop stress for pure pressure tYt Longitudinal stress crtt Limit longitudinal stress for pure longitudinal force tg Angle from bending plane to plastic neutral axis 253 INTRODUCTION The collapse...

... storage tank knowledge management eurocode 8 engineering hoop stress ec 8 tank calculation evaluation tank wall prediction failure mechanism Proceedings of the Tenth (2000) International Offshore and Polar Engineering Conference Seattle, USA, May 28-June 2, 2000 Copyright © 2000...

... thickness calculation. The formula uses the thin wall pipe theory subtracting the external pressure from the internal design pressure. However, as the external pressure increases, the hoop stresses from this equation become too high compared to the thick wall pipe theory which provides exact solutions...

... is exceeded by maximum hoop stress. This paper proposes an approach for calculations of burst strength of dented pipes with cracks. Comparisons of predicted burst strength based on the approach presented in the paper and test results are made and a good agreement is observed. Burst reliability model...

... in the buckling/collapse calculations. external pressure collapse capacity hoop stress analytical equation cross section capacity equation upstream oil & gas axial force riser corrosion equation flowline corrosion analytical capacity equation pipeline corrosion internal pressure corrosion...

... membrane hoop stress membrane differential equation membrane structure boundary element model equation static shape hoop stress hydrodynamic response membrane deformation flexible membrane structure boundary condition finite element method upstream oil & gas gravity wave...