2024
DOI: 10.1002/pi.6682
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Investigating the relationship between natural frequency and residual strength and stiffness of cross‐ply laminate under cyclic loading

Pouya Valizadeh,
Ahad Zabett,
Jalil Rezaeepazhand

Abstract: Predicting the fatigue life of wind turbine rotor blades is a challenging and crucial engineering task. This study investigates the correlation between modal parameters and the degradation of residual strength and tensile modulus in the cross‐ply glass epoxy laminate [0/90]7 used in wind turbine blades under fatigue loading. The tensile and vibration characteristics were assessed, followed by constant amplitude fatigue tests at 35%, 43% and 55% of the ultimate tensile strength, with R = 0.1 and a frequency of … Show more

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