Abstract
Phenomenological interrelations between creep strain and slow crack growth are derived based on the fact that the total creep strain at fracture is determined by the growth kinetics of a pre-existing crack. It is shown that measurements of the creep strain in a region remote from the growing crack can be used to predict failure periods for materials that concurrently exhibit creep and slow crack growth.
Résumé
En se basant sur le fait que la déformation totale de fluage lors de la rupture résulte d'une cinétique de croissance d'une fissure préexistante, on établit les interrelations phénoménologiques entre la déformation de fluage et la croissance lente d'une fissure. On montre que des mesures de la déformation de fluage dans une région éloignée de celle où croît la fissure peuvent être utilisée pour prédire les temps de rupture de matériaux qui peuvent présenter simultanément du fluage et de la croissance lente d'une fissure.
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Lange, F.F. Interrelations between creep and slow crack growth for tensile loading conditions. Int J Fract 12, 739–744 (1976). https://doi.org/10.1007/BF00037919
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DOI: https://doi.org/10.1007/BF00037919