Static fatigue of SiC-based multifilament tows at intermediate temperature: The time to failure variability
Langue
EN
Article de revue
Ce document a été publié dans
International Journal of Fatigue. 2021, vol. 145, p. 106072
Résumé en anglais
Multiple attempts have been devoted to interpret and predict the time to failure variability experienced on SiC bundles by slow-crack-growth. External discrete phenomena such as fiber sticking or load sharing are usually ...Lire la suite >
Multiple attempts have been devoted to interpret and predict the time to failure variability experienced on SiC bundles by slow-crack-growth. External discrete phenomena such as fiber sticking or load sharing are usually pointed. These approaches were reviewed and compared to extensive datasets on 6 fiber types, showing their insufficiency to cover the full scattering range. An original theory was hence evaluated: in addition to filament strength distribution, ruled by weakest link theory and therefore narrowly scattered, a bias on tow section and thus on applied stress, was introduced. Consistent results were obtained through a Monte-Carlo algorithm integrating these stochastic parameters.< Réduire
Mots clés en anglais
SiC fiber
Lifetime
Static fatigue
Nicalon
Tyranno
Unités de recherche