This paper presents an advanced approach for modelling high-cycle fatigue in concrete structures without the need to model each individual cycle. The three-dimensional fracture-plastic model has been extended to capture fatigue damage in tension. The material model is based on…
This paper presents an advanced approach for modelling high-cycle fatigue in concrete structures without the need to model each individual cycle. The three-dimensional fracture-plastic model has been extended to capture fatigue damage in tension. The material model is based on the classical S-N or Wöhler curve. The S-N criterion is translated into a material damage, which is introduced into the material model based on stress increments at each material point and the number of cycles. The fatigue damage evolution is integrated per number of cycles with no need to model each individual cycle. This approach allows to consider the additional crack growth that may result due to force redistribution during the fatigue damage evolution process. The current paper presents the improved version of the fatigue model published previously by the authors as well as their application of modelling the fatigue crack growth in concrete structures strengthened by Fiber Reinforced Polymer (FRP) composites. .