Fracture Analysis of the Heat-Affected Zone in the NESC-1 Spinning Cylinder ExperimentSource: Journal of Pressure Vessel Technology:;1999:;volume( 121 ):;issue: 001::page 1Author:J. A. Keeney
DOI: 10.1115/1.2883662Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents updated analyses of the cylinder specimen being used in the international Network for Evaluating Steel Components (NESC) large-scale spinning-cylinder project (NESC-1). The NESC was organized as an international forum to exchange information on procedures for structural integrity assessment, to collaborate on specific projects, and to promote the harmonization of international standards. The objective of the NESC-1 project is to focus on a complete procedure for assessing the structural integrity of aged reactor pressure vessels. A clad cylinder containing through-clad and subclad cracks will be tested under pressurized-thermal shock conditions at AEA Technology, Risley, U.K. Three-dimensional finite-element analyses were carried out to determine the effects of including the cladding heat-affected zone (HAZ) in the models. The cylinder was modeled with inner-surface through-clad cracks having a depth of 74 mm and aspect ratios of 2:1 and 6:1. The cylinder specimen was subjected to centrifugal loading followed by a thermal shock and analyzed with a thermoelastic-plastic material model. The peak KI values occurred at the clad/HAZ interface for the 6:1 crack and at the HAZ/base interface for the 2:1 crack. The analytical results indicate that cleavage initiation is likely to be achieved for the 6:1 crack, but questionable for the 2:1 crack.
keyword(s): Heat , Spin (Aerodynamics) , Fracture (Process) , Cylinders , Fracture (Materials) , Cladding systems (Building) , Finite element analysis , Networks , Thermal shock , Reactor vessels , Shock (Mechanics) , Steel AND Engineering standards ,
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contributor author | J. A. Keeney | |
date accessioned | 2017-05-09T00:00:43Z | |
date available | 2017-05-09T00:00:43Z | |
date copyright | February, 1999 | |
date issued | 1999 | |
identifier issn | 0094-9930 | |
identifier other | JPVTAS-28389#1_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/122751 | |
description abstract | This paper presents updated analyses of the cylinder specimen being used in the international Network for Evaluating Steel Components (NESC) large-scale spinning-cylinder project (NESC-1). The NESC was organized as an international forum to exchange information on procedures for structural integrity assessment, to collaborate on specific projects, and to promote the harmonization of international standards. The objective of the NESC-1 project is to focus on a complete procedure for assessing the structural integrity of aged reactor pressure vessels. A clad cylinder containing through-clad and subclad cracks will be tested under pressurized-thermal shock conditions at AEA Technology, Risley, U.K. Three-dimensional finite-element analyses were carried out to determine the effects of including the cladding heat-affected zone (HAZ) in the models. The cylinder was modeled with inner-surface through-clad cracks having a depth of 74 mm and aspect ratios of 2:1 and 6:1. The cylinder specimen was subjected to centrifugal loading followed by a thermal shock and analyzed with a thermoelastic-plastic material model. The peak KI values occurred at the clad/HAZ interface for the 6:1 crack and at the HAZ/base interface for the 2:1 crack. The analytical results indicate that cleavage initiation is likely to be achieved for the 6:1 crack, but questionable for the 2:1 crack. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Fracture Analysis of the Heat-Affected Zone in the NESC-1 Spinning Cylinder Experiment | |
type | Journal Paper | |
journal volume | 121 | |
journal issue | 1 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.2883662 | |
journal fristpage | 1 | |
journal lastpage | 5 | |
identifier eissn | 1528-8978 | |
keywords | Heat | |
keywords | Spin (Aerodynamics) | |
keywords | Fracture (Process) | |
keywords | Cylinders | |
keywords | Fracture (Materials) | |
keywords | Cladding systems (Building) | |
keywords | Finite element analysis | |
keywords | Networks | |
keywords | Thermal shock | |
keywords | Reactor vessels | |
keywords | Shock (Mechanics) | |
keywords | Steel AND Engineering standards | |
tree | Journal of Pressure Vessel Technology:;1999:;volume( 121 ):;issue: 001 | |
contenttype | Fulltext |