Volume 3: Design and Analysis 2008
DOI: 10.1115/pvp2008-61650
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Insights and Observations Arising From Curve-Fitting the Charpy V-Notch and Tensile Data Contained Within the United States’ Light Water Reactor Surveillance Database

Abstract: The effect of irradiation damage on the mechanical properties of reactor pressure vessel structures is monitored in operating nuclear reactors according to the provisions of 10 CFR Part 50 Appendix H. In these surveillance programs Charpy V-notch energy and tensile data are collected. Trends in these data have and continue to be used to identify and quantify embrittlement trends, which is a key aspect to maintaining the continued structural integrity of the operating reactor fleet. This paper presents the curr… Show more

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Cited by 11 publications
(6 citation statements)
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“…Figure 1(b) shows the measured toughness-temperature properties for the material in terms of conventional Charpy V-notch impact energy (T-L orientation). In this plot, the symbols represent the experimentally measured Charpy energy and the solid line defines a hyperbolic tangent curve fitting proposed by Kirk et al [38] in the form…”
Section: Materials Description and Mechanical Propertiesmentioning
confidence: 99%
“…Figure 1(b) shows the measured toughness-temperature properties for the material in terms of conventional Charpy V-notch impact energy (T-L orientation). In this plot, the symbols represent the experimentally measured Charpy energy and the solid line defines a hyperbolic tangent curve fitting proposed by Kirk et al [38] in the form…”
Section: Materials Description and Mechanical Propertiesmentioning
confidence: 99%
“…Para outros critérios de avaliação, a curva obtida deve ser ajustada, por exemplo, conforme o método descrito por Eircksonkirk e Shaikh [20].…”
Section: Tratamento Dos Dados Pelo Método Da Tangente Hiperbólicaunclassified
“…Após os ensaios de impacto as superfícies de fratura foram examinadas por microscopia eletrônica de varredura (MEV). Para o levantamento das curvas de temperatura em função da energia absorvida, os dados obtidos foram tratados e ajustados conforme o método da tangente hiberbólica, descrito por Ericksonkink e Shaikh[11] Na Figura 4 foram analisados apenas os corpos de prova confeccionados na direção transversal ao sentido da laminação, e na Figura 5 apenas os corpos de prova confeccionados na direção longitudinal. Para uma melhor análise também foram plotados nos gráficos os valores experimentais (V.E.)…”
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