Journal of Pressure Vessel Technology: Recent submissions
Now showing items 621-640 of 4506
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HITEP_RCC-MRx Program for the Support of Elevated Temperature Design Evaluation and Defect Assessment
(American Society of Mechanical Engineers (ASME), 2019)An integrated software platform of high-temperature design evaluation and defect assessment for a nuclear component and piping system subjected to high-temperature operation in creep regime has been developed. The program, ... -
Thermomechanical Evaluation of the Performance and Integrity of a HDPE Stub-End Bolted Flange Connection
(American Society of Mechanical Engineers (ASME), 2019)In this study, the integrity of a manhole structure made of a 78 in. high density polyethylene (HDPE) stub-end, steel ring, and blind flange, sealed with a compressed nonasbestos fiber (CNAF) gasket is investigated by means ... -
Notch Effect on Structural Strength of Components at Elevated Temperature Under Creep, Fatigue, and Creep-Fatigue Loading Conditions: Phenomenon and Mechanism
(American Society of Mechanical Engineers (ASME), 2019)Structural discontinuities (e.g., nozzle, hole, and groove) widely occur in many high temperature components of nuclear and fossil power plants. In general, the notched component is used for simplified tests and analyses ... -
Influence of Material Parameters and Thermal Parameters on Sealing Performance of Reactor Pressure Vessel Under Heat Focusing Effect
(American Society of Mechanical Engineers (ASME), 2019)In this paper, an effective numerical model is established by combining the fluid–structure coupling and thermomechanical coupling methods to solve complex sealing problems of a reactor pressure vessel (RPV) test simulator ... -
Damage and Springback Analysis of Two Typical Dented Pipelines With Different Parameters
(American Society of Mechanical Engineers (ASME), 2019)During pipeline construction, the pipeline may be impacted by sharp rocks or excavators. To study the failure mechanism of the pipeline, the damage degree and springback rate of the pipelines with two typical dents (transverse ... -
Buckling Analysis of Toroidal Shell by Rayleigh-Ritz Method
(American Society of Mechanical Engineers (ASME), 2019)The energy approach is used to analyze the buckling stability of toroidal shells. A closed and an open toroidal shell, as well as a shell segment are considered. Linear strain energy and nonlinear strain energy due to a ... -
Generalized Plane Strain Study of Rotational Autofrettage of Thick-Walled Cylinders—Part I: Theoretical Analysis
(American Society of Mechanical Engineers (ASME), 2019)In recent years, a few new methods of achieving autofrettage in thick-walled hollow cylinders have been developed. Rotational autofrettage is one of the new methods proposed recently for prestressing thick-walled cylinders. ... -
Consideration of a Stress-Based Criterion for Local Failure and Its Implementation in a Damage Mechanics Model
(American Society of Mechanical Engineers (ASME), 2019)Analyses of the notched tension tests of carbon steel show that ductile failure is initiated when the sum of flow stress and mean stress reaches the limit for the material, regardless of stress triaxiality. Therefore, this ... -
Dynamic Burst Pressure of Cylindrical Explosion Containment Vessels
(American Society of Mechanical Engineers (ASME), 2019)Cylindrical explosion containment vessels (ECVs) are widely applied in transportation, nuclear engineering, public security, and scientific research fields to ensure the safety of the staff and equipment. In this paper, a ... -
Optimization and Standardization of Flanged and Flued Expansion Joint Design
(The American Society of Mechanical Engineers (ASME), 2019)Flanged and flued type expansion joint (thick wall expansion bellow) used as an integral part of many shell and tube heat exchanger where process conditions produce differential expansion between shell and tubes. It provides ... -
Erosion Mechanism and Sensitivity Parameter Analysis of Natural Gas Curved Pipeline
(The American Society of Mechanical Engineers (ASME), 2019)With the deepening of natural gas exploitation, the problem of sand production in gas wells is becoming more and more serious, especially in high-yield gas wells. The solid particles in natural gas are very likely to cause ... -
Numerical Analysis of Influence of Roughness of Material Surface on High-Speed Liquid Droplet Impingement
(The American Society of Mechanical Engineers (ASME), 2019)This study explains why the deep erosion pits are formed in liquid droplet impingement erosion even though the droplets uniformly impinge on the entire material surface. Liquid droplet impingement erosion occurs in fluid ... -
Prediction of Fracture Failure of Steel Pipes With Sharp Corrosion Pits Using Time-Dependent Reliability Method With Lognormal Process
(The American Society of Mechanical Engineers (ASME), 2019)This paper presents a reliability-based methodology for assessing fracture failures of steel pipes with sharp corrosion pits. Based on newly developed models of elastic fracture toughness, the simple criterion of stress ... -
Analysis of Powder Airborne Release Fractions for Vessel Ruptures
(The American Society of Mechanical Engineers (ASME), 2019)The Department of Energy (DOE) handbook for airborne releases from nonreactor nuclear facilities bases its bounding airborne release fraction (ARF) for pressurized powders on tests conducted at Pacific Northwest Laboratory ... -
Fluidelastic Vibration Analysis of Normal Square Finned Tube Arrays in Water Cross Flow
(The American Society of Mechanical Engineers (ASME), 2019)An experimental program was carried out by subjecting normal square finned tube arrays to gradually increasing water cross flows. In all, total six tube arrays were tested—three having pitch ratio 2.1 and remaining three ... -
Limited Versus Unlimited Strain Accumulation Due to Ratcheting Mechanisms
(The American Society of Mechanical Engineers (ASME), 2019)After distinguishing material ratcheting and structural ratcheting, different phenomena related to structural ratcheting are gathered. Ratcheting of elastic–plastic structures observed with stationary position of loads is ... -
Analytical Modeling of Self-Loosening of Bolted Joints Subjected to Transverse Loading
(The American Society of Mechanical Engineers (ASME), 2019)Self-loosening of bolted joints is a common issue in structural connections and machine design. This phenomenon can not only cause the industry a lot of losses due to maintenance but can result in catastrophic incidents ... -
Influence of Internal Inward Pressure on Stability of Open-Top Aboveground Steel Tanks Subjected to Wind Loading
(The American Society of Mechanical Engineers (ASME), 2019)The results of wind tunnel tests indicate that there is an internal inward pressure induced by wind excitation when open-top tanks are examined, but not when close-top tanks are examined. This internal pressure is considered ... -
Probabilistic Characterization of an Allowable Design Moment in a Piping Elbow
(The American Society of Mechanical Engineers (ASME), 2019)The design of a nuclear power plant piping requires consideration of the effects of pressure and moment loads according to the appropriate design equation, which is Piping design equation (9) in NC/ND-3600, Section III of ... -
A Creep Buckling Design Method of Elliptical Heads Based on the External Pressure Chart
(The American Society of Mechanical Engineers (ASME), 2019)The buckling design criteria of elliptical heads in ASME VIII-1, ASME NH, and RCC-MRx are reviewed and compared. Accordingly, an external pressure chart (EPC) based buckling design approach is developed for elliptical heads ...