Delayed failure prediction of SiC-based bundles: the impact of sampling size
Language
EN
Article de revue
This item was published in
International Journal of Fatigue. 2020-05-01, vol. 138, p. 105694
English Abstract
The present paper deals with sampling size related uncertainties for the delayed failure of SiC-based bundles under static fatigue condition. It is shown that 75 tests are required to assess the median lifetime with a 20% ...Read more >
The present paper deals with sampling size related uncertainties for the delayed failure of SiC-based bundles under static fatigue condition. It is shown that 75 tests are required to assess the median lifetime with a 20% error at a given stress/temperature. Extending this work at different stress highlights the error on prediction parameters (classical power law model) for different testing strategies: stress scanning with little repetition or conversely extensive repetition at few stresses. It is shown, for a fixed total number of tests, a mixed approach (inconstant number of repetition) should be preferred to reduce the error.Read less <
English Keywords
SiC fiber
Lifetime
Mechanical property
Sample number
Static fatigue