Journal of Pressure Vessel Technology: Recent submissions
Now showing items 1301-1320 of 4506
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Simulation and Analysis of Residual Stress and Microstructure Transformation for Post Weld Heat Treatment of a Welded Pipe
(The American Society of Mechanical Engineers (ASME), 2014)With the characteristics of the sandglassshaped temperature field generated during welding of highfrequency induction longitudinally welded pipe taken into consideration, this paper focuses on the rules of influence of a ... -
A Unified Viscoplastic Model for High Temperature Low Cycle Fatigue of Service Aged P91 Steel
(The American Society of Mechanical Engineers (ASME), 2014)The finite element (FE) implementation of a hyperbolic sine unified cyclic viscoplasticity model is presented. The hyperbolic sine flow rule facilitates the identification of strainrate independent material parameters for ... -
Development, Use, and Accuracy of a Homogenized Fuel Region Model for Thermal Analysis of a Truck Package Under Normal and Fire Accident Conditions
(The American Society of Mechanical Engineers (ASME), 2014)In the current work, a geometricallyaccurate twodimensional model is developed of an isolated fuel assembly within isothermal compartment walls. Finite difference thermal simulations are performed to determine the cladding ... -
Transient Characteristics of a Closed Loop Pipe System During Pump Stopping Periods
(The American Society of Mechanical Engineers (ASME), 2014)In order to study the transient characteristics of a closedloop pipe system with room temperature water, experiments were carried out based on different pump stopping periods from rate rotational speed to zero. Various ... -
Investigation of Residual Stress Development During Swage Autofrettage, Using Finite Element Analysis
(The American Society of Mechanical Engineers (ASME), 2014)Swaging is one method of autofrettage, a means of prestressing highpressure vessels to increase their fatigue lives and load bearing capacity. Swaging achieves the required deformation through physical interference between ... -
Evaluation of Cumulative Damage in a Series of Sequential Load Events
(The American Society of Mechanical Engineers (ASME), 2014)During the safety assessments of transport packages, cumulative damages are naturally accumulated for assessments performed using physical tests specimens. However, such cumulative damages are not as easily accounted for ... -
Buckling of High Strength Steel Cylinders Under Cyclic Bending in the Inelastic Range1
(The American Society of Mechanical Engineers (ASME), 2014)The present paper examines the structural behavior of elongated steel hollow cylinders, referred to as tubes or pipes, subjected to large cyclic bending, through a rigorous finite element simulation. The bent cylinders ... -
Weight Function Method With Segment Wise Polynomial Interpolation to Calculate Stress Intensity Factors for Complicated Stress Distributions
(The American Society of Mechanical Engineers (ASME), 2014)Many solutions of the stress intensity factor have been proposed in recent years. However, most of them take only third or fourthorder polynomial stress distributions into account. For complicated stress distributions which ... -
Lower Bound Methods in Elastic Plastic Shakedown Analysis
(The American Society of Mechanical Engineers (ASME), 2014)Several methods were proposed in recent years that allow the efficient calculation of elastic and elasticplastic shakedown limits. This paper establishes a uniform framework for such methods that are based on perfectlyplastic ... -
Analytical Prediction of Fatigue Crack Growth Behavior Under Biaxial Loadings
(The American Society of Mechanical Engineers (ASME), 2014)Aircraft and pressure vessel components experience stresses that are negative biaxial or multiaxial in nature. Biaxiality is defined as the ratio of stress applied parallel and normal to the crack front. In recent years, ... -
Wave Propagation in Tapered Vessels: New Analytic Solutions That Account for Vessel Distensibility and Fluid Compressibility
(The American Society of Mechanical Engineers (ASME), 2014)The central aim of this paper is to contribute to the theoretical analysis and understanding of the effect of vessel tapering on the propagation of pressure and velocity wave forms. To this end, it presents new analytic ... -
Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
(The American Society of Mechanical Engineers (ASME), 2014)A recently developed equilibrium based curve/surface fitting method is extended to linear function with heteroscedastic data (variable variance). The concept of equilibrium weighted “force†and “moment†is proposed ... -
Attenuation Effects of a Single Deck Floating Roof in a Liquid Storage Tank
(The American Society of Mechanical Engineers (ASME), 2014)Liquidroof interaction imposes a complicated distribution of outofplane deformation on the singledeck type floating roof (SDRF), which is the main source of considerable seismic stresses in floating roof. In this paper, ... -
Sensitivity Analysis for the Resistance on the Performance of a Pressure Vessel for Water Hammer Protection
(The American Society of Mechanical Engineers (ASME), 2014)Pressure vessels can greatly protect a water supply pipeline system from water hammer damages. In order to improve the performance of a pressure vessel, a strainer is proposed to compensate the resistance of the connecting ... -
Experimental and Numerical Investigation of Heated Band Width for Local Post Weld Heat Treatment of ASME P92 Steel Pipe
(The American Society of Mechanical Engineers (ASME), 2014)Local post weld heat treatment (local PWHT) is usually carried out when it is impractical to place the entire component in a furnace or oven, which is an effective way to relax residual stress due to welding. However, there ... -
A Method to Approximate the Steady State Creep Response of Three Dimensional Pipe Bend Finite Element Models Under Internal Pressure Loading Using Two Dimensional Axisymmetric Models
(The American Society of Mechanical Engineers (ASME), 2014)Pipe bends are regions of geometric discontinuities in the pipe systems used in power plants and most industry recorded failures have been located around similar regions. Understanding these potential locations of weakness ... -
Passive Vibration Control of Structures Subjected to Random Ground Excitation Utilizing Sloshing in Rectangular Tanks
(The American Society of Mechanical Engineers (ASME), 2014)Passive vibration control of an elastic structure carrying a rectangular tank, partially filled with liquid, is investigated when the structure is subjected to horizontal, narrowband, random ground excitation. The modal ... -
Determination of Shakedown Boundary and Failure Assessment Diagrams of Cracked Pipe Bends
(The American Society of Mechanical Engineers (ASME), 2014)Determination of shakedown (SD) boundaries of 90degree plain smooth pipe bends has recently received substantial attention by several researchers. However, scarce or almost no solid information is found within the literature ... -
A Coupling Method for Hydrodynamic Ram Analysis: Experimental and Numerical Investigation
(The American Society of Mechanical Engineers (ASME), 2014)Hydrodynamic pressures generated by a nonexploding projectile penetrating a fuel tank can be very destructive. During the impact, the projectile transfers momentum and kinetic energy to the container through the surrounding ... -
Experimental Investigation of a Tandem Cylinder System With a Yawed Upstream Cylinder
(The American Society of Mechanical Engineers (ASME), 2014)The unsteady flow field produced by a tandem cylinder system with the upstream cylinder yawed to the mean flow direction is investigated for upstream cylinder yaw angles from خ±=60 deg to خ±=90 deg. Multipoint fluctuating ...