Abstract
Reference stress methods have been used to provide a description of creep crack growth in terms of uniaxial creep data. Crack growth rates are shown to be a function of displacement rates and geometry and predicted results are compared with experimental data on 1/2CMV steam pipe material in two different heat treated conditions.
Résumé
On a utilisé des méthodes de contrainte de référence pour obtenir une description de la croissance d'une fissure de fluage en termes de données de fluage uniaxial. Les vitesses de croissance de fissuration apparaissent être une fonction des vitesses de déplacement et de la géométrie, et les résultats prédits sont comparés avec des données expérimentales, dans le cas d'un matériau pour tube de vapeu 1/2CMV examiné sous 2 conditions de traitement thermique.
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Freeman, B.L. The estimation of creep crack growth rates by reference stress methods. Int J Fract 15, 179–190 (1979). https://doi.org/10.1007/BF00037832
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DOI: https://doi.org/10.1007/BF00037832