Technical Basis for Revised Reference Crack Growth Rate Curves for Pressure Boundary Steels in LWR EnvironmentSource: Journal of Pressure Vessel Technology:;1980:;volume( 102 ):;issue: 004::page 433Author:W. H. Bamford
DOI: 10.1115/1.3263355Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reference fatigue crack growth rate curves have been contained in Appendix A of Section XI since its inception. The curves have been designed to be applicable to carbon and low alloy pressure vessel steels exposed to either air or light water reactor coolant environments. Data obtained over the past several years have shown a different behavior of these steels in the LWR environment than that predicted by the present reference curve. A revised set of reference curves have been formulated, incorporating a new curve shape as well as a dependency of growth rate on R ratio (minimum load/maximum load). This article provides the background and justification for such a revision, details the methodology used to develop the revised curves, and includes an evaluation of the adequacy and impact of the revised curves as compared with the single curve which they replace.
keyword(s): Pressure , Steel , Fracture (Materials) , Light water reactors , Stress , Coolants , Carbon , Fatigue cracks , Shapes , Pressure vessels AND Alloys ,
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contributor author | W. H. Bamford | |
date accessioned | 2017-05-08T23:09:37Z | |
date available | 2017-05-08T23:09:37Z | |
date copyright | November, 1980 | |
date issued | 1980 | |
identifier issn | 0094-9930 | |
identifier other | JPVTAS-28192#433_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/93756 | |
description abstract | Reference fatigue crack growth rate curves have been contained in Appendix A of Section XI since its inception. The curves have been designed to be applicable to carbon and low alloy pressure vessel steels exposed to either air or light water reactor coolant environments. Data obtained over the past several years have shown a different behavior of these steels in the LWR environment than that predicted by the present reference curve. A revised set of reference curves have been formulated, incorporating a new curve shape as well as a dependency of growth rate on R ratio (minimum load/maximum load). This article provides the background and justification for such a revision, details the methodology used to develop the revised curves, and includes an evaluation of the adequacy and impact of the revised curves as compared with the single curve which they replace. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Technical Basis for Revised Reference Crack Growth Rate Curves for Pressure Boundary Steels in LWR Environment | |
type | Journal Paper | |
journal volume | 102 | |
journal issue | 4 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.3263355 | |
journal fristpage | 433 | |
journal lastpage | 442 | |
identifier eissn | 1528-8978 | |
keywords | Pressure | |
keywords | Steel | |
keywords | Fracture (Materials) | |
keywords | Light water reactors | |
keywords | Stress | |
keywords | Coolants | |
keywords | Carbon | |
keywords | Fatigue cracks | |
keywords | Shapes | |
keywords | Pressure vessels AND Alloys | |
tree | Journal of Pressure Vessel Technology:;1980:;volume( 102 ):;issue: 004 | |
contenttype | Fulltext |