Journal of Pressure Vessel Technology: Recent submissions
Now showing items 2061-2080 of 4506
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Metallographic Examination and Validation of Thermal Effects in Hypervelocity Gouging
(The American Society of Mechanical Engineers (ASME), 2007)In this work, a gouged section of 1080 railroad rail steel is examined using metallographic techniques to characterize the nature of the damage. The gouging was performed by a rocket sled at ... -
Review and Consideration of Unsettled Problems on Evaluation of Fatigue Damage in LWR Water
(The American Society of Mechanical Engineers (ASME), 2007)Reduction in the fatigue life of structural materials of nuclear components in Light Water Reactor (LWR) water was initially detected and examined by the authors in the 1980s, who subsequently ... -
Asset Management Evaluation: A Pilot Case Study
(The American Society of Mechanical Engineers (ASME), 2007)The long term management of a production asset raises several major issues, among which rank the technical management of the plant, its economics, and the fleet level perspective one has to ... -
Application of an Ultrasonic Technique to Assess Contact Performance of Bolted Joints
(The American Society of Mechanical Engineers (ASME), 2007)Bolted joints are a widespread type of connection used in mechanical engineering, but their performance, in terms of contact area size and shape and pressure distribution, is not easy to verify ... -
Thermal Shock Cracking: Design and Assessment Guidelines
(The American Society of Mechanical Engineers (ASME), 2007)Repeated thermal shock cracking is common in the operation of pressure equipment where water and steam are present. Surprisingly, it is not fully covered in the ASME Boiler and Pressure Vessel ... -
Use of Duplex Stainless Steel in Economic Design of a Pressure Vessel
(The American Society of Mechanical Engineers (ASME), 2007)Pressure vessels have been used for a long time in various applications in oil, chemical, nuclear, and power industries. Although high-strength steels have been available in the last three ... -
A Study on Fluid Excitation Forces Acting on a Rotated Square Tube Bundle of T∕D=3.1 in Cross-Flow
(The American Society of Mechanical Engineers (ASME), 2007)The local fluid excitation force acting on a rotated square tube bundle having transverse pitch-to-diameter ratio of T∕D=3.1, in a single-phase cross-flow was measured, and the normalized power ... -
Plastic Zone Coalescence and Edge Break Conditions of Internal Cracks in a Semi-infinite Sheet
(The American Society of Mechanical Engineers (ASME), 2007)The problem of two cracks in a semi-infinite sheet is analyzed. The critical conditions when adjacent plastic zones just coalesced are obtained. Also, the conditions when a plastic zone just ... -
Eddy Current Examination of Fatigue Cracks in Inconel Welds
(The American Society of Mechanical Engineers (ASME), 2007)Basic studies on the eddy current examination of defects in Inconel, a typical nickel-base alloy used in the reactor vessel, pressurizer, and core internal of nuclear power plants, are carried ... -
Autofrettage and Reautofrettage of a Spherical Pressure Vessel
(The American Society of Mechanical Engineers (ASME), 2007)There is a numerical procedure for modeling autofrettage of thick-walled cylinders that incorporates the Bauschinger effect as a function of prior plastic strain and Von Mises’ yield criterion. ... -
Approximate Direct and Inverse Relationships for Thermal and Stress States in Thick-Walled Vessels Under Thermal Shock
(The American Society of Mechanical Engineers (ASME), 2007)Approximate solutions were derived for the transient through steady-state thermal-stress fields developed in thick-walled vessels subjected to a potentially arbitrary thermal shock. In order to ... -
Reliability of Sampling Inspection Schemes Applied to Replacement Steam Generators
(The American Society of Mechanical Engineers (ASME), 2007)The basis for determining the size of the random sample of tubes to be inspected in replacement steam generators is revisited in this paper. A procedure to estimate the maximum number of ... -
Incorporating Neural Network Material Models Within Finite Element Analysis for Rheological Behavior Prediction
(The American Society of Mechanical Engineers (ASME), 2007)The accuracy of a finite element model for design and analysis of a metal forging operation is limited by the incorporated material model’s ability to predict deformation behavior over a wide ... -
Numerical Simulation of In-Service Welding of a Pressurized Pipeline
(The American Society of Mechanical Engineers (ASME), 2007)The temperature field and stress distribution for in-service welding of a flowing media, pressurized pipeline are simulated by use of the finite element method (FEM). In order to investigate ... -
Optical Monitoring of Bolt Tightening Using 3D Electronic Speckle Pattern Interferometry
(The American Society of Mechanical Engineers (ASME), 2007)An optical method is presented for the real-time monitoring of the bolt tightening process that provides the necessary clamping force in bolted assemblies. The method uses the 3D electronic ... -
Fatigue Crack Modeling and Simulation Based on Continuum Damage Mechanics
(The American Society of Mechanical Engineers (ASME), 2007)Numerical simulation of fatigue crack propagation based on fracture mechanics and the conventional finite element method requires a huge amount of computational resources when the cracked structure ... -
Post-Expansion Tube Response Under Mechanical and Hydraulic Expansion—A Comparative Study
(The American Society of Mechanical Engineers (ASME), 2007)This paper presents a mathematical model of post-expansion tube response under mechanical expansion. The stress, pressure, and displacement waves propagating through the tube-fluid system and their ... -
Strength and Buoyancy Analyses of Floating Roof With Continuous Beams and Dome Frames Under Rainwater Loading
(The American Society of Mechanical Engineers (ASME), 2007)In this paper, the strength and buoyancy problems of the floating roof with continuous beams and dome frames are analyzed by the finite element method (FEM) and model experiment method. The ... -
Thermal Opening Technique for Nondestructive Evaluation of Closed Cracks
(The American Society of Mechanical Engineers (ASME), 2007)This paper describes the “thermal opening technique” for enhancing the ultrasonic response of a tightly closed crack. In this approach, thermal stress is generated by cooling the part locally ... -
Acoustic Excitation by Flow in T-Junctions
(The American Society of Mechanical Engineers (ASME), 2007)The flow-acoustic nature of sharp-edged T-junctions is investigated experimentally. In this paper, the pipes forming the T-crossbar are referred to as the branches and the pipe forming the central ...