Journal of Pressure Vessel Technology: Recent submissions
Now showing items 2761-2780 of 4506
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On the Evaluation of Dynamic Stresses in Pipelines Using Limited Vibration Measurements and FEA in the Frequency Domain
(The American Society of Mechanical Engineers (ASME), 1999)A practical technique is investigated for the determination of dynamic stresses in pipelines through the use of finite element method (FEM) and field measurement vibrations at selected points. ... -
Experimental Study of the Flow in the Suction Pipe of a Centrifugal Pump at Partial Flow Rates in Unsteady Conditions
(The American Society of Mechanical Engineers (ASME), 1999)The operational range and the performances of pumps are limited by the occurrence of backflow and prerotation in the suction pipe as the flow rate is reduced. This paper presents the study ... -
An Investigation of Cladding Effects on Shallow-Flaw Fracture Toughness of Reactor Pressure Vessel Steel Under Prototypic Biaxial Loading
(The American Society of Mechanical Engineers (ASME), 1999)Potential structural-integrity benefits or liabilities of the stainless steel cladding on the inner surface of a reactor pressure vessel (RPV) are important considerations in the effort to refine ... -
Fatigue Crack Growth Testing of Sub-Clad Defects
(The American Society of Mechanical Engineers (ASME), 1999)Fatigue crack growth tests were performed on four-point bend specimens with cracklike defects intentionally placed in A302B low-alloy pressure vessel steel clad with 308/309L weld-deposited stainless ... -
Eliminating Thermoacoustic Oscillations in Heat Exchanger and Steam Generator Systems
(The American Society of Mechanical Engineers (ASME), 1999)Systems comprised of hot and cold components containing gaseous fluids may be subject to thermoacoustic oscillations if the temperature gradient between the two components exceeds a critical ... -
Residual Stresses in Weld-Deposited Clad Pressure Vessels and Nozzles
(The American Society of Mechanical Engineers (ASME), 1999)Results of through-thickness residual stress measurements are provided for a variety of samples of weld-deposited 308/309L stainless steel and Alloy 600 cladding on low-alloy pressure vessel ... -
The Impact of a Sphere on a Timoshenko Thin-Walled Beam of Open Section With due Account for Middle Surface Extension
(The American Society of Mechanical Engineers (ASME), 1999)The problem on the normal impact of an elastic sphere upon an elastic Timoshenko arbitrary cross section thin-walled beam of open section is considered. The process of impact is accompanied ... -
High-Temperature Buckling Analysis of Titanium Cans Under External Pressure
(The American Society of Mechanical Engineers (ASME), 1999)Powder metallurgy techniques are often used in the fabrication of finished and semi-finished articles. At the CEA, a cold followed by a hot isostatic pressing method is used to produce solid ... -
Effect of Internal Pressure on Elastic-Plastic Behavior of Pipe Elbows Under In-Plane Bending Moments
(The American Society of Mechanical Engineers (ASME), 1999)The purpose of this study is to investigate the effect of pressure on the strain and stress analysis of pipe elbows subjected to in-plane bending moments. A finite element model for the bend ... -
Bauschinger Effect Design Procedures for Autofrettaged Tubes Including Material Removal and Sachs’ Method
(The American Society of Mechanical Engineers (ASME), 1999)Autofrettage is used to introduce advantageous residual stresses into pressure vessels and to enhance their fatigue lifetimes. The Bauschinger effect serves to reduce the yield strength in ... -
Modeling of Deepwater-Type Rectangular Tuned Liquid Damper With Submerged Nets
(The American Society of Mechanical Engineers (ASME), 1999)An analytical model for describing the effectiveness of deepwater-type tuned liquid damper (TLD) with submerged nets for suppressing horizontal vibration of structures is proposed. TLD is a damping ... -
Experimental, Analytical, and Regulatory Evaluation of Seismic Behavior of Piping Systems
(The American Society of Mechanical Engineers (ASME), 1999)Based on an experimental program, including both individual components and piping system, CEA has evaluated the margins coming from present design procedures and has developed sound analytical ... -
Development of NiCrAlY Alloys for Corrosion-Resistant Coatings and Thermal Barrier Coatings of Gas Turbine Components
(The American Society of Mechanical Engineers (ASME), 1999)The demand for improved efficiency and power output of energy conversion systems has lead to an increase of gas inlet temperatures in modern land-based gas turbines. The resulting increase of ... -
Scanned Orbital Welding: Thermal Modeling and Lumped Adaptive Control
(The American Society of Mechanical Engineers (ASME), 1999)Scan orbital welding of cylindrical vessel, flange, and piping parts is performed by their rapid revolution under a radially or axially translated heat source, with its power modulated so as ... -
Dynamic Behavior of a Clamped Plastic Beam With Cracks at Supporting Ends Under Impact
(The American Society of Mechanical Engineers (ASME), 1999)This paper examines a projectile impact on a rigid-plastic beam with cracks at the fully clamped ends. By assuming the cracked sections yield immediately after impact, a three-hinge/two-hinge ... -
Acoustically Induced Structural Fatigue of Piping Systems
(The American Society of Mechanical Engineers (ASME), 1999)Piping systems handling high-pressure and high-velocity steam and various process and hydrocarbon gases through a pressure-reducing device can produce severe acoustic vibration and metal fatigue ... -
Fatigue Behavior of Line Pipes Subjected to Severe Mechanical Damage
(The American Society of Mechanical Engineers (ASME), 1999)Fatigue behavior of electrically resistance welded (ERW) line pipes with a gouge in a dent was experimentally investigated. After denting and machining a gouge, fluctuating internal pressure was ... -
Residual Stress Estimation in Crossbores With Bauschinger Effect Inclusion Using FEM and Strain Energy Density
(The American Society of Mechanical Engineers (ASME), 1999)Crossbore intersections in liquid ends of positive displacement pumps (PDPs) have regions with high stress concentration. Due to the cyclic loading that occurs in most PDPs, these stress ... -
Residual Stress Analysis by Simplified Inherent Strain at Welded Pipe Junctures in a Pressure Vessel
(The American Society of Mechanical Engineers (ASME), 1999)We present a new and simplified method of estimating residual stress in welded structures by using inherent strain. The method makes use of elastic analysis by means of the finite element ... -
Weld Repair of 2-1/4Cr-1Mo Service-Aged Header Welds
(The American Society of Mechanical Engineers (ASME), 1999)The objective of this investigation was to evaluate the efficacy of different weld repair techniques as applied to service-aged 2-1/4Cr-1Mo steel weldments. A header which had been in service ...