A material model for prediction of fatigue damage and degradation of CFRP materials

Hohe, J.J.HoheGall, M.M.GallGauch, H.H.GauchFliegener, S.S.FliegenerHamid, Z.M.B.A.Z.M.B.A.Hamid2022-03-132022-03-132017https://publica.fraunhofer.de/handle/publica/39800110.4028/www.scientific.net/KEM.742.740Objective of the present study is the definition of a material model accounting for fatigue damage and degradation. The model is formulated as a brittle damage model in the otherwise linear elastic framework. A stress driven damage evolution equation is derived from microplasticity considerations. The model is implemented as a user-defined material model into a commercial finite element program. In a comparison with experimental data in the low cycle fatigue regime, a good agreement with the numerical prediction is obtained.enA material model for prediction of fatigue damage and degradation of CFRP materialsconference paper