Journal of Pressure Vessel Technology: Recent submissions
Now showing items 1061-1080 of 4506
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Recharacterization of Subsurface Flaw to Surface Flaw Based on Equivalent Fatigue Crack Growth Rate
(The American Society of Mechanical Engineers (ASME), 2016)A subsurface flaw located near a component surface is transformed to a surface flaw in accordance with a flawtosurface proximity rule. The recharacterization process from subsurface to surface flaw is adopted in all ... -
High Temperature Low Cycle Fatigue Behavior of MarBN at 600 آ°C
(The American Society of Mechanical Engineers (ASME), 2016)This paper presents the hightemperature lowcycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. ... -
The Interacting Effect for Collinear Cracks Near Mismatching Bimaterial Interface Under Elastic Creep
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, the modified reference stress method is introduced to estimate the C* integral for collinear creep cracks near the mismatching bimaterial interface (MBI) and the process that leads to these solutions is also ... -
Measurements of the Stack Metal Temperature During a Natural Gas Blowdown Event Through a Full Bore Blowdown Valve
(The American Society of Mechanical Engineers (ASME), 2016)Experiments were used in conjunction with a compressible flow model to investigate the temperature recovery phenomenon along a blowdown stack during a highpressure natural gas pipeline blowdown. The test rig involved ... -
Failure Behavior of Multiple Axial Part Through Wall Flaws in Alloy 690TT Steam Generator Tubes
(The American Society of Mechanical Engineers (ASME), 2016)This study investigates the interaction effect of multipleaxial partthroughwall (PTW) flaws on the failure behavior of Alloy 690TT steam generator (SG) tubes. Burst tests of tubes with single and multiple flaws were conducted ... -
A Cell Based Smoothed Radial Point Interpolation—Perfectly Matched Layer Method For Two Dimensional Acoustic Radiation Problems
(The American Society of Mechanical Engineers (ASME), 2016)We present a cellbased smoothed radial point interpolation method (CSRPIM) model for twodimensional acoustic radiating problem by incorporating the perfectly matched layer method (PML). In this work, the computational ... -
Effect of Nozzle Junction and Equipment Stiffness on Absorption of Pipe Thermal Loads
(The American Society of Mechanical Engineers (ASME), 2016)As an industry norm, the nozzle local loads are considered to be local and are not considered in foundation design. Presently, this norm is under debate. One opinion is some percent of these loads are to be considered to ... -
Ultimate Strength of a Thin Wall Elbow for Sodium Cooled Fast Reactors Under Seismic Loads
(The American Society of Mechanical Engineers (ASME), 2016)With a purpose of identifying the failure mode and associating the ultimate strength of piping components against seismic integrity, many kinds of failure tests have been conducted for thick wall piping for light water ... -
Application of Weibull Stress Criterion to Brittle Fracture Assessment of Heat Affected Zone Notched Welds With Residual Stress
(The American Society of Mechanical Engineers (ASME), 2016)A constraint loss correction procedure using the Weibull stress criterion is specified in ISO 27306. However, this standard is applicable only to structural steel components with defects, not to welded joints. Therefore, ... -
A Numerical Study on CMOD Compliance for Single Edge Notched Bending Specimens
(The American Society of Mechanical Engineers (ASME), 2016)Several wellknown equations for estimating the crack length in the singleedge notched bending (SE(B)) specimens from the normalized crack mouth opening displacement (CMOD) compliance are evaluated based on twodimensional ... -
Effect of Pipe Bend Configuration on Guided Waves Based Defects Detection: An Experimental Study
(The American Society of Mechanical Engineers (ASME), 2016)Ultrasonic guided waves is one of the most effective nondestructive testing techniques, which has been successfully applied for damage detection and evaluation of piping components. However, research about defects detection ... -
Experimental and Numerical Study of Pressure in a Shock Tube
(The American Society of Mechanical Engineers (ASME), 2016)This paper presents the behavior of pressure in an air–water shock tube. In this work, highpressure air (at 100 bar) interacts with water (at 1 atm ∼ 1 bar) through an orifice in a 100 mm constant diameter ... -
Residual Stress Reduction in Single Pass Welds Using Parallel Line Reheating
(The American Society of Mechanical Engineers (ASME), 2016)Current postweld heat treatment (PWHT) methods rely mainly on static thermal sources or line heating using dispersed beams which require significant capital investment and often pose limits on weldment size. In the current ... -
Improved One Dimensional Models for Rapid Emptying and Filling of Pipelines
(The American Society of Mechanical Engineers (ASME), 2016)Improved onedimensional (1D) models—compared to previous work by the authors—are proposed which are able to predict the velocity, length, and position of the liquid column in the rapid emptying and filling of a pipeline. ... -
Measurement and Characterization of the Initial Geometric Imperfections in High Strength U ing, O ing and Expanding Manufactured Steel Pipes
(The American Society of Mechanical Engineers (ASME), 2016)The geometric imperfections in high strength Uing, Oing and expanding (UOE) manufactured pipes are investigated in this paper using a highresolution 3D surface scanner, and a reverse engineering and inspection software. ... -
Technical Basis for Application of Collapse Moments for Locally Thinned Pipes Subjected to Torsion and Bending Proposed for ASME Section XI
(The American Society of Mechanical Engineers (ASME), 2016)Piping components in power plants may experience combined bending and torsion moments during operation. There is a lack of guidance for pipe evaluation for pipes with local wallthinning flaws under the combined bending and ... -
Mathematical Approaching and Experimental Assembly to Evaluate the Risks of In Service Welding in Hot Tapping
(The American Society of Mechanical Engineers (ASME), 2016)The welding onto inservice pipeline (operation condition) results in three possibilities of high risks: leaking and/or explosion by burnthrough, chemical reactions to instability, or even explosion due to the heat on ... -
Minimum Weight Design for Toroidal Shells With Strengthening Component
(The American Society of Mechanical Engineers (ASME), 2016)This article presents an approach to the minimum weight design for toroidal shells with strengthening component subject to internal pressure. The optimal shape is obtained by adjusting the geometry and wall thickness of ... -
Prediction of Weld Residual Stress in a Pressurized Water Reactor Pressurizer Surge Nozzle
(The American Society of Mechanical Engineers (ASME), 2016)Primary water stress corrosion cracking (PWSCC) phenomenon in dissimilar metal welds is one of the safety issues in ageing pressurized water reactor (PWR) piping systems. It is well known that analysis accuracy of cracking ... -
Strength of 316FR Joints Welded by Type 316FR/16 8 2 Filler Metals
(The American Society of Mechanical Engineers (ASME), 2016)Type 316 stainless steel with lowcarbon and mediumnitrogen contents called 316FR stainless steel is a candidate structural material for reactor vessels and internals of futuregeneration fast breeder reactors (FBRs). The ...