The prediction of failure due to fatigue is still one of the most fundamental challenges in engineering. Fatigue is thereby distinguished in two categories: low cycle fatigue and high cycle fatigue. While low cycle fatigue is accompanied by plastic deformations, high cycle fatigue is associated with elastic deformations. By focusing on low cycle fatigue, the failure occurs in two phases. The recursive plastic deformations lead to decohesion at the micro scale first which subsequently coalesce into cracks on the macro scale [1]. One promising modeling category to predict the lifetime to failure subject to proportional load cases is the critical plane approach [2]. For non-proportional load cases, however, continuum damage mechanics is a suitable tool in order to consider the interactions between different strain components in a more accurate manner. Following the latter idea, a continuum damage mechanics model suitable for anisotropic ductile damage will be extended to capture low cycle fatigue [3]. Within the respective model, the criterion for damage initiation is of utmost importance. The damage criterion in [1] is extended by means of the plastic strain amplitude as well as the dissipation associated with the underlying ductile damage model. This allows to capture the effect of different load amplitudes as well as differences in cyclic lifetime induced by forming-induced damage [4]. The capabilities of the final model will be demonstrated based on low cycle fatigue experiments. References: [1] Lemaitre J. Engineering damage mechanics: ductile, creep, fatigue and brittle failures. Springer-Verlag Berlin Heidelberg, 2005. [2] Socie D. and Marquis G.B. Multiaxial fatigue. Society of automotive engineers warrendale, PA, 2000. [3] Menzel A., Ekh M. And Steinmann P., Runesson K. Anisotropic damage coupled to plasticity: modelling based on the effective configuration concept. International journal for numerical methods in engineering, 54, 1409–1430, 2002. [4] Hering O. and Tekkaya A.E. Damage-induced performance variations of cold forged parts. Journal of Materials Processing Tech., 279, 116556, 2020.