Delayed failure prediction of SiC-based bundles: The impact of sampling size
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Article de revue
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International Journal of Fatigue. 2020, vol. 138
Resumen en inglés
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% ...Leer más >
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.< Leer menos
Palabras clave en inglés
SiC fiber
Lifetime
Mechanical property
Sample number
Static fatigue
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