Resumen de Optimal Solution of the Fractional Differential Equation to Solve the BendingPerformance Test of Corroded Reinforced Concrete Beams under PrestressedFatigue Load
Cheng Chen, Ahmed Mohamed Helmi Mohamed Elsadek Abd Elfatah
With the help of fractional differential equations, this article studies the failure morphology, fatigue strength, andfatigue life of corroded reinforced concrete beams under fatigue loading. Studies have shown that the mid-spandeflection of low-corrosion reinforced concrete beams is smaller than that of uncorroded reinforced concrete beams. The corrosion-fatigue coupling effect accelerates the fatigue crack growth rate of steel bars. This reduces the fatigue modulus of concrete and causes the stiffness of the beam to degrade. The research results provide a theoretical basis for the fatigue performance evaluation of corroded reinforced concrete beams
