... to incorporate the CT scan porosity data into the finite element model of a hydrogen moderator with a GTAW weld to determine fitness-for-service. The stress analysis was performed to evaluate the weld defects and to qualify the GTAW weld via the ASME BPVC design criteria. hydrogen vessel weld porosity CT...

... by the existing codes may be underestimated. obround pressure vessel hoop stress ellipse out-of-roundness stress analysis Proceedings of the ASME 2024 Pressure Vessels & Piping Conference PVP2024 July 28-August 2, 2024, Bellevue, Washington PVP2024-121933 RESEARCH ON STRESS IN OBROUND AND OUT...

... system. This will include a full CFD and FEA of the piping system combined with validation of the simulation from the commissioning of the live system. It is anticipated that Part 2 will be published in 2025. LNG cooldown thermal bowing stress analysis Proceedings of the ASME 2024 Pressure...

... by the computational approach. Finally, a criterion for when thermal striping may be of concern in a piping layout and should be analyzed further is proposed. Keywords: Thermal Striping, Computational Fluid Dynamics (CFD), Piping, Finite Element Method (FEM), Stress Analysis, Fatigue Failure Analysis NOMENCLATURE BS...

... size and class flanges and their highly stressed locations will be revealed. Keywords: ASME B16.5 and B16.47 flanges, stress analysis, tightness, rotation, structural integrity. NOMENCLATURE Poisson ratio Cylinder constant (mm-1) Rotation (rad) hub angle (rad) Stress (MPa) 1 Contact author...

... elucidated. The purpose of this study is to investigate the effects of metal hollow O-ring under compression on the sealing performance. So, the effects of the thickness ratio of O-ring to the diameter of it on the sealing performance are examined using both FEM stress analysis and the leakage measurements...

... that the analysis of obround components relies on empirical formulas and numerical analysis, and to develop a new design method for obround components. obround pressure vessel non-circular stress analysis theoretical analysis closed-form solution Proceedings of the ASME 2023 Pressure Vessels & Piping...

... the reliability of pipelines, it is necessary to conduct stress analysis on pipelines crossing tunnels. In a project, the gas transmission pipeline in a tunnel is buried in embankment. Considering the surrounding actual conditions, pipeline operation status and other factors, it is necessary to formulate...

... of the underlying causes, which leads to early damage to welded structure and arouses catastrophic accident. Therefore, the quality control of pipeline welds is very important to ensure the safety of pipelines. It is necessary to carry out stress analysis on the girth weld of pipeline containing welding defects...

... determined with the European standard EN 1591-1 for the flange connections, are assessed with twice elastic slope method, limit load and elastic-plastic stress analysis according to ASME BPVC, Section VIII, Div. 2. [4] Proof of acceptability of the nonlinear finite element-calculations are conducted...

.... stress analysis supplemental steel Proceedings of the ASME 2021 Pressure Vessels & Piping Conference PVP2021 July 13-15, 2021, Virtual, Online PVP2021-62077 Case Study of Supplemental Steel Structures Phillip Wiseman1, Raju Subedi LISEGA INC Kodak, TN ABSTRACT S Snow Load (lbf or N) Supplementary...

... Abstract Within Section III of the ASME Boiler & Pressure Vessel Code, Appendix XIII-3440 contains guidance for performing shakedown analysis. XIII-3440 allows use of elastic-plastic stress analysis for evaluating shakedown and fatigue analysis. However, Appendix XIII does not specify any...

... Abstract Bend flexibility factor is defined as the ratio of rotation of a pipe bend to that of a straight pipe of the same diameter, wall thickness and length under the action of the same bending moment. In stress analysis of piping systems with the beam method, this factor is of great...

... limits. stress analysis spiral wound gasket seating evaluation flange rotation angle tubesheet-flanged joint Proceedings of the ASME 2021 Pressure Vessels & Piping Conference PVP2021 July 13-15, 2021, Virtual, Online PVP2021-60398 SEALING EVALUATION OF TUBESHEET-FLANGED JOINT UNDER INTERNAL...

... stress analysis piping vibration ESTIMATION OF BENDING STRESSES IN PIPING SYSTEMS SUBJECTED TO TRANSIENT PRESSURE Maral Taghva1, Lars Damkilde2 1SNC-Lavalin ATKINS, Esbjerg, Denmark 2Aalborg University, Aalborg, Denmark ABSTRACT Modifications in aged process plants may subject piping systems to fluid...

... gallery. In recent years, the accidents of steam pipeline occurred frequently, so we must pay more attention to the safety of steam pipeline. Periodic Inspection Regulation for Industrial Pressure Piping (TSG D7005-2018) explicitly requires stress analysis and checking in some cases to determine...

... of problematic FRP bolted joint applications. Keywords: FRP flanges, anisotropy, stress analysis, laminate theory. NOMENCLATURE Poisson ratio h Hub constant, mm-1 s Shell constant, mm-1 Strain, 1 Contact author: [email protected] Rotation, rad Stress, MPa a Constant according to the gasket, MPa Ab...

.... Because these calculation algorithms provide not only a stress analysis but also a tightness proof, it would be preferable to use them also in the NPP’s in Switzerland. Additionally, for regulatory approval also the requirements of the ASME BPVC must be fullfilled. For determining the bolting up torque...

.... measurement method optical fiber sensor bolted joints stress analysis strength design EVALUATION OF BOLT STRENGTH CHARACTERISTICS IN BOLTED JOINTS USING AN OPTICAL FIBER SENSOR SYSTEM Atsushi SHIRAKAWA1 Honda R&D Co., Ltd. Automobile R&D Center Hagamachi, Tochigi, Japan Toshiyuki SAWA2 Professor...

... the bolt bearing surface is sloped. Finally, discussion is made on an appropriate contact area, and critical contact stress at the bearing surface as well as suitable bolt shape and bolt head dimensions. bolted joints finite element analysis stress analysis contact stress stress distribution...