𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fatigue behaviour of AlMgSi tubular specimens subjected to bending–torsion loading

✍ Scribed by L.M.P. Abreu; J.D. Costa; J.A.M. Ferreira

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
990 KB
Volume
31
Category
Article
ISSN
0142-1123

No coin nor oath required. For personal study only.

✦ Synopsis

The work here presented is concerned with an experimental and numerical fatigue behaviour study of tubular specimens. Welded and notched tubular specimens of AlMgSi T6 alloy were submitted to inphase bending-torsion tests. For both geometries, correlation of the fatigue lives was satisfactorily obtained by the distortion energy hypothesis based on the local stresses. A stress-strain field intensity approach and a novel energy-based approach were used to predict the fatigue lives. The applicability of fictitious radius concept at the welded toe was also tested. Comparison between referred theoretical predictions and experimental results reveal reasonable correlations, taking into account the scatter normally observed in fatigue results.

📜 SIMILAR VOLUMES

Fracture behaviour and stress fields of
Fracture behaviour and stress fields of cracked bend specimens subjected to mixed mode loading
✍ Wang Tzu Chiang; K.J. Miller 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 806 KB

An elasti~lastic finite element analysis of the stress fields at the tips of cracks subjected to mixed mode loading is presented. The paper concludes with a fracture analysis using several current fracture criteria and compares these theoretical results with experiment results on severat materials.

Effect of loading-program modifications
Effect of loading-program modifications in rotating-bending tests on fatigue behaviour of aircraft material specimens
✍ Prof. Dr. A. Buch 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 980 KB

## Abstract Multilevel rotating‐bending block tests were performed and the effect of stress peaks on the damage sum of notched aircraft material specimens was investigated. Test results were compared from the viewpoints of the residual stress concept and of the non‐linear, stress‐dependent damage‐c