Journal of Pressure Vessel Technology: Recent submissions
Now showing items 381-400 of 4506
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In Memoriam: Georg Ernest Otto Widera (1938–2022)
(The American Society of Mechanical Engineers (ASME), 2022)Otto WideraOtto Widera passed away on Feb. 11, 2022. Otto, well-known by his friends with that name, was born on Feb. 16, 1938, in Dortmund, Germany. The Widera family sailed to the U.S. on the Queen Mary in 1950, when his ... -
Benchmark Analysis of Ductile Fracture Simulation for Circumferentially Cracked Pipes Subjected to Bending
(The American Society of Mechanical Engineers (ASME), 2021)To predict fracture behavior for ductile materials, some ductile fracture simulation methods different from classical approaches have been investigated based on appropriate models of ductile fracture. For the future use ... -
Fatigue Life Assessment for Variable Strain in a Mixing Tee by Use of Effective Strain Range
(The American Society of Mechanical Engineers (ASME), 2021)Mixing flow causes fluctuations in fluid temperature near a pipe wall and may result in fatigue crack initiation. Movement of the hot spot, at which the pipe inner surface was heated by hot flow from the branch pipe, causes ... -
Creep–Fatigue Interaction Effects on Pressure-Reducing Valve Under Cyclic Thermomechanical Loadings Using Direct Cyclic Method
(The American Society of Mechanical Engineers (ASME), 2021)Supercritical boiler system has been widely used to increase efficiency of electricity generation in power plant industries. However, the supercritical operating condition can seriously affect structural integrity of power ... -
Improvement of Probabilistic Fracture Mechanics Analysis Code PASCAL-SP Regarding Stress Corrosion Cracking in Nickel Based Alloy Weld Joint of Piping System in Boiling Water Reactor
(The American Society of Mechanical Engineers (ASME), 2021)In the past few decades, cracks because of stress corrosion cracking (SCC) have been detected in the dissimilar weld joints using nickel-based alloy in piping system of boiling water reactors (BWRs). Thus, the structural ... -
EPFM Analyses of a Complex Crack in Dissimilar Metal Welded Pipes
(The American Society of Mechanical Engineers (ASME), 2021)Accurate estimation of elastic-plastic fracture mechanics (EPFM) parameters for a crack in nuclear pipes was considered as an important factor for leak-before-break design and evaluation. Yet few EPFM studies have been ... -
Evaluation of the Creep Rupture Behavior of Alloy 690 Steam Generator Tubes Considering the Pressure Ramp Rate
(The American Society of Mechanical Engineers (ASME), 2021)Steam generator tubes are among the main components that form the pressure boundary of a nuclear power plant and studies of ruptures of steam generator (SG) tubes are important because they can ensure the safety of a nuclear ... -
Finite Element Welding Residual Stress Analysis of CRDM Penetration Nozzles
(The American Society of Mechanical Engineers (ASME), 2021)This article investigates numerically welding residual stress distributions of a tube with J-groove weld in control rod drive mechanisms of a pressurized nuclear reactor vessel. Parametric study is performed for the effect ... -
Surface to Through-Wall Crack Transition Model for Circumferential Cracks in Pipes
(The American Society of Mechanical Engineers (ASME), 2021)In this paper, finite element (FE) analyses were performed to update and also extend the applicable ranges of the existing KI and crack-opening displacement (COD) solutions for nonidealized through-wall cracks (TWCs). Then, ... -
J and CTOD-Based Tensile Strain Capacity Prediction for Pipelines With a Surface Crack in Girth Weld
(The American Society of Mechanical Engineers (ASME), 2021)Long-distance pipelines for the transport of oil and natural gas to onshore facilities are mainly fabricated by girth welding, which has been considered as a weak location for cracking. Pipeline rupture due to crack ... -
Special Issue: Recent Advances in Design and Structural Integrity of Pressure Vessels, Piping and Components
(The American Society of Mechanical Engineers (ASME), 2021)The design and structural integrity evaluation of pressure retaining equipment are crucial elements in the nuclear, oil, and gas industries. Accordingly, many research has been done to improve the accuracy of design and ... -
Investigation on the Characteristics of a New Structure Brake Distribution Valve
(The American Society of Mechanical Engineers (ASME), 2021)A brake distribution valve is an important part of aircraft hydraulic systems. To realize the integration and lightweight design of traditional structure valves, boost the response speed of valves, and reduce the influence ... -
Improved Thermowell Selection
(The American Society of Mechanical Engineers (ASME), 2021)We examine a documented failure in high-velocity condensate correctly identified by the current standard, unlike similar failures that could only be explained if elevated Strouhal number was considered. On closer review ... -
Optimization Design of an Efficient Evacuator for Gun Barrels
(The American Society of Mechanical Engineers (ASME), 2021)Evacuators are key components of gun barrels, and their main function is to drain the gunpowder gas remaining in the gun bore from the muzzle by ejection. To design an efficient evacuator for the gun barrels, an optimization ... -
Revisiting Failure of Brittle Materials
(The American Society of Mechanical Engineers (ASME), 2021)Failures of isotropic brittle materials were revisited to find out whether there are unified failure criteria, which can be applied to a load-carrying structural component made of a brittle material regardless of whether ... -
Erosion Wear Characteristics of Tee Tubes With Gas–Solid Two-Phase Flow
(The American Society of Mechanical Engineers (ASME), 2021)Pressure manifold is prone to failure caused by cuttings and gravels included in the underground natural gas and shale gas. In particular, the tee tubes are one of the most easily failed components. In order to study the ... -
Research on the Flow Resistance Coefficient of a Multihole, Secondary Pressure-Reducing Sleeve Valve
(The American Society of Mechanical Engineers (ASME), 2021)When fluid flows through a regulating valve, static pressure changes due to the change of fluid area. If the static pressure is lower than saturated vapor pressure, cavitations erosion, and flash vaporization will occur. ... -
Ground Motion Intensity Measures for Seismic Vulnerability Assessment of Steel Storage Tanks With Unanchored Support Conditions
(The American Society of Mechanical Engineers (ASME), 2021)This paper aims to comprehensively evaluate the performance of a series of ground motion intensity measures (IMs) used in the seismic vulnerability assessment of steel storage tanks with unanchored support conditions. ... -
Dynamic Modeling of Spent Fuel Rack Pool Subjected to Seismic Excitation Considering Fluid–Structure Interaction
(The American Society of Mechanical Engineers (ASME), 2021)The spent fuel of a nuclear power plant is generally stored in a wet storage pool. In case of a seismic event, one has to ensure the integrity of the spent fuel and structures holding them called spent fuel racks. In this ... -
Seismic Fragility of Piping Nozzles in Nuclear Power Plants: A Case for Updating the Current State-of-Practice
(The American Society of Mechanical Engineers (ASME), 2021)Nuclear industry spends enormous time and resources on designing and managing piping nozzles in a plant. Nozzle locations are considered as a potential location for possible failure that can lead to loss of coolant accident. ...