Consideration of runouts by the evaluation of fatigue experiments
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Beschreibung
In EC3, the fatigue life of a steel structure subjected to a cyclic load is estimated by its detail category. This category is based on the S-N, curves which are obtained by applying the Basquin model. Statistically, this model does not allow extrapolating the S-N curves in the HCF region, neither does it consider the runouts. This affects the fatigue life estimation when a structure bears loading in HCF. To overcome these deficiencies, a new method based on a Weibull distribution is applied.
In EC3, the fatigue life of a steel structure subjected to a cyclic load is estimated by its detail category. This category is based on the S-N, curves which are obtained by applying the Basquin model. Statistically, this model does not allow extrapolating the S-N curves in the HCF region, neither does it consider the runouts. This affects the fatigue life estimation when a structure bears loading in HCF. To overcome these deficiencies, a new method based on a Weibull distribution is applied.
Autor*in
Paul Dario Toasa Caiza
Themen in »Consideration of runouts by the evaluation of fatigue experiments«
Runouts Weibull Ermüdung Cyclic Loading zyklische Beanspruchung Durchläufern Wöhlerkurven Fatigue Weibull S-N Curves