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- Title
Crack propagation models: numerical and experimental results on Ti-6Al-4V notched specimens.
- Authors
Baragetti, S; Villa, F
- Abstract
To investigate on corrosion fatigue, a reliable crack propagation rate model has to be adopted, along with a suitable fracture mechanics model, to decouple the mechanical contribution from the environmental effects. In the present work, a numerical algorithm is proposed to characterize the mechanical behaviour of notched Ti-6Al-4V specimens for fatigue and corrosion fatigue tests. The method is based on theoretical crack propagation rate models, jointly with stress intensity factor range obtained from linear finite element models. Results are compared with experimental data for axial fatigue ( R = 0.1) and theoretical models for fatigue crack growth, such as Paris, Walker and Kato.
- Subjects
CRACK propagation (Fracture mechanics); CORROSION &; anti-corrosives; STRESS intensity factors (Fracture mechanics); FINITE element method; AXIAL stresses
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2017, Vol 40, Issue 8, p1276
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.12561