Static fatigue of SiC-based multifilament tows at intermediate temperature: The time to failure variability
Language
EN
Article de revue
This item was published in
International Journal of Fatigue. 2021, vol. 145, p. 106072
English Abstract
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 ...Read more >
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.Read less <
English Keywords
SiC fiber
Lifetime
Static fatigue
Nicalon
Tyranno