fatigue material

[zahrataeb]

dear colleagues

I modeled a concrete bridge column . For the reinforcement of the column, I assigned fatigue materials.
Do I need to define fatigue material for concrete core and concrete cover?

I appreciate your help

[mhscott]

No, you do not need to define fatigue material for the concrete.

[zahrataeb]

No, you do not need to define fatigue material for the concrete.

thank you so much.
But why is it not necessary to define fatigue for concrete material? Does the concrete material not get fatigue under earthquake load?

best regards