6533b7d7fe1ef96bd12693ef

RESEARCH PRODUCT

A thermodynamically consistent CZM for low-cycle fatigue analysis

Francesco ParrinelloIvano BenedettiGuido Borino

subject

Endurance surfaceThermodynamicMechanical EngineeringMechanics of MaterialLow-cycle fatigueMaterials Science (all)Settore ICAR/08 - Scienza Delle CostruzioniSettore ING-IND/04 - Costruzioni E Strutture AerospazialiCohesive zone modeling

description

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.

10.4028/www.scientific.net/kem.774.576http://hdl.handle.net/10447/357018