A thermodynamically consistent CZM for low-cycle fatigue analysis
- Autori: Parrinello, F.; Benedetti, I.; Borino, G.
- Anno di pubblicazione: 2018
- Tipologia: Proceedings (TIPOLOGIA NON ATTIVA) (Traduzione in volume)
- OA Link: http://hdl.handle.net/10447/357018
A cohesive zone model for low-cycle fatigue analysis is developed in a consistent thermodynamic framework of elastic-plastic-damage mechanics with internal variable. A specific fatigue activation condition allows to model the material degradation related to the elastic-plastic cyclic loading conditions, with tractions levels lower than the damage activation condition. A moving endurance surface, in the classic framework of kinematic hardening, enables a pure elastic behavior without any fatigue degradation for low levels loading conditions.