Fatigue crack growth prediction in 2xxx AA with friction stir weld HAZ properties
Journal Title: Frattura ed Integrità Strutturale - Year 2016, Vol 10, Issue 35
Abstract
An analytical model is developed to predict fatigue crack propagation rate under mode I loading in 2024 aluminum alloy with FSW HAZ material characteristics. Simulation of the HAZ local properties in parent 2024 AA was performed with overaging using specific heat treatment conditions. The model considers local cyclic hardening behavior in the HAZ to analyze crack growth. For the evaluation of the model, the analytical results have been compared with experimental fatigue crack growth on overaged 2024 alloy simulating material behavior at different positions within the HAZ. The analytical results showed that cyclic hardening at the crack tip can be used successfully with the model to predict FCG in a material at overaged condition associated with a location in the FSW HAZ.
Authors and Affiliations
A. Tzamtzis
Keywords
Related Articles
- EP ID EP164358
- DOI 10.3221/IGF-ESIS.35.45
- Views 32
- Downloads 0
Defect detection of wire rope for oil well based on adaptive angle
This paper uses a digital image processing method which is based on texture feature of steel cable to detect the fracture of steel wire. At first, it uses a modified homomorphic filtering method to eliminate envi...
Crack path dependence on inhomogeneities of material microstructure
Crack trajectories under different loading conditions and material microstructural features play an important role when the conditions of crack initiation and crack growth under fatigue loading have to be evaluated...
Modello numerico per la simulazione e l’ottimizzazione di controlli non distruttivi con ultrasuoni
I controlli non distruttivi basati sull’impiego di ultrasuoni sono ampiamente usati per la loro efficacia e affidabilità nel rilevamento di difetti. La generazione di onde ultrasonore e la propagazione in strutture di f...
Advanced techniques for estimation of the tensile fracture toughness of adhesive joints
Adhesive bonding has become more efficient in the last few decades due to the adhesives developments, granting higher strength and ductility. As a result, adhesives are being increasingly used in industries such a...
A micropolar model for the analysis of dispersive wavesin chiral mass-in-mass lattices
The possibility of obtaining band gap structures in chiral auxetic lattices is here considered andapplied to the case of inertial locally resonant structures. These periodic materials are modelled as beam-latticesm...