Journal of Pressure Vessel Technology: Recent submissions
Now showing items 1101-1120 of 4506
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Evaluation of the Influence of Residual Stresses on Ductile Fracture
(The American Society of Mechanical Engineers (ASME), 2015)In this work, the significance of residual stresses on ductile fracture is investigated by a set of experiments that are analyzed by finite element simulations. The treatment of residual stresses as expressed in fracture ... -
Evolution of Temperature Distribution and Microstructure in Multipass Welded AISI 321 Stainless Steel Plates With Different Thicknesses
(The American Society of Mechanical Engineers (ASME), 2015)Prediction of temperature distribution, microstructure, and residual stresses generated during the welding process is crucial for the design and assessment of welded structures. In the multipass welding process of parts ... -
Evaluation of a Pipe–Flange Connection Method Based on Cold Work
(The American Society of Mechanical Engineers (ASME), 2015)The conventional joining method of a pipe and a flange uses welding. However, welded pipe–flange joints have the drawback with the inherent distortions and residual stresses resulting from the welding process, which can ... -
Carburization of Ethylene Pyrolysis Furnace Tube in a Petrochemical Plant
(The American Society of Mechanical Engineers (ASME), 2015)Carburization phenomena of the ethylene pyrolysis furnace tube made of 25Cr35NiNb alloy were investigated after service for approximate 30,000 h in a petrochemical plant. Three different zones, namely, oxidation zone, ... -
Evaluation of Fracture Toughness Behavior of Polyethylene Pipe Materials1
(The American Society of Mechanical Engineers (ASME), 2015)The main purpose of the present paper is to investigate the effect of crosshead speed, specimen thickness, and welding on the fracture toughness. The material of the investigated pipe is a high density polyethylene (HDPE), ... -
Assessment of Coke Drum Materials Based on ASME Material Property Data
(The American Society of Mechanical Engineers (ASME), 2015)Delayed coking as a part of heavy oil upgrading is characterized with severe thermal–mechanical operating conditions. Coke drums operating under such conditions require proper design and material selection in order to ... -
Effects of Pressurized Water Reactor Medium on the Fatigue Life of Austenitic Stainless Steels
(The American Society of Mechanical Engineers (ASME), 2015)A statistical model for austenitic stainless steels for predicting the effect of pressurized water reactor (PWR) environments on fatigue life for a range of temperatures and strain rates is developed based on analysis of ... -
Effect of Dissimilar Leading Edges on the Flow Structures Around a Square Cylinder
(The American Society of Mechanical Engineers (ASME), 2015)In the present study, results of a flow visualization study on the flow around a square cylinder with dissimilar leading edges are presented. The radii of the leading edges of the cylinder “r1†and “r2†are such ... -
The Effect of Flat Bar Supports on Streamwise Fluidelastic Instability in Heat Exchanger Tube Arrays
(The American Society of Mechanical Engineers (ASME), 2015)Flowinduced vibration is an important criterion for the design of heat exchangers in nuclear, fossil, and chemical plants. Of the several known vibration excitation mechanisms, fluidelastic instability (FEI) is the most ... -
Feasibility Study of Thermal Autofrettage of Thick Walled Cylinders
(The American Society of Mechanical Engineers (ASME), 2015)Thickwalled cylinders such as gun barrels, high pressure containers, and rocket shells are designed to withstand high pressure. The cylinder material may crack if the induced pressure exceeds the material yield strength. ... -
Probabilistic Pressurized Thermal Shocks Analyses for a Reactor Pressure Vessel
(The American Society of Mechanical Engineers (ASME), 2015)Both deterministic and probabilistic methods are used to assess the integrity of a reactor pressure vessel (RPV) subjected to pressurized thermal shocks (PTSs). The FAVOR code is applied to calculate the probabilities for ... -
Prediction of Burst Pressure of Pipes With Geometric Eccentricity
(The American Society of Mechanical Engineers (ASME), 2015)An analytical model was proposed in this paper to predict the burst pressure of a pipe with geometric eccentricity. With application of the complex elastic potential function method in a bipolar coordinate system, the ... -
The Influence of Imperfections and Nonlinearities on the Failure and B2 Stress Index of Thin Walled Pipes
(The American Society of Mechanical Engineers (ASME), 2015)The effects of imperfections and nonlinearities on the failure mode and the B2 stress index of thinwalled straight pipes are investigated with finite element (FE) analyses. The analyses were performed for pipes made of an ... -
Effect of Specimen Geometry on the Predicted Mechanical Behavior of Polyethylene Pipe Material1
(The American Society of Mechanical Engineers (ASME), 2015)The primary objective of the present paper is to depict the mechanical behavior of high density polyethylene (HDPE) pipes under different loading conditions with different specimen geometries to provide the designer with ... -
Analytical Solution for the Thermopiezoelastic Behavior of a Smart Functionally Graded Material Hollow Sphere Under Radially Symmetric Loadings
(The American Society of Mechanical Engineers (ASME), 2015)An analytical study of the piezothermoelastic behavior of a functionally graded material (FGM) hollow sphere with integrated piezoelectric layers as a sensor and actuator under the effect of radially symmetric thermoelec ... -
Capacity Analysis and Safety Assessment of Polyethylene Pipeline With Local Wall Thinning Defect
(The American Society of Mechanical Engineers (ASME), 2015)The purpose of this study is to propose a safety assessment procedure for polyethylene (PE) pipe with local wallthinning defect. A uniaxial tensile test is performed to test the mechanical performance of PE. Then, the ... -
Modeling Pop Action Pressure Relief Valve as a Bistable Element
(The American Society of Mechanical Engineers (ASME), 2015)To overcome the shortcomings of traditional method for modeling pop action pressure relief valves (PAPRVs), a new method for modeling PAPRVs as a bistable element is proposed. The effects of the model’s main parameters ... -
Underground Corrosion Model of Steel Pipelines Using In Situ Parameters of Soil
(The American Society of Mechanical Engineers (ASME), 2015)A simple yet practical model to estimate the time dependence of metal loss (ML) in underground pipelines has been developed considering the in situ soil parameters. These parameters are soil resistivity, pH, moisture ... -
Steady State Response of a Piping System Under Harmonic Excitations Considering Pipe Support Friction With Variable Normal Loads
(The American Society of Mechanical Engineers (ASME), 2015)Dynamic loads in piping systems are mainly caused by transient phenomena generated by operating conditions or installed equipment. In most cases, these dynamic loads may be modeled as harmonic excitations, e.g., pulsating ... -
Serviceability Assessment of Creep Strength Enhanced Ferritic Steels
(The American Society of Mechanical Engineers (ASME), 2015)The metallurgical advancements exhibited in creep strength enhanced ferritic (CSEF) steels have changed the dynamics of boiler design and operation by improving the fatigue life of thickwalled components and improving cycle ...