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, vol. 138
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
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