FATIGUE-CRACK GROWTH-RETARDATION ASSESSMENT OF 2024-T3 AND 6061-T6 ALUMINUM SPECIMENS

Authors
PANTELAKIS SG KERMANIDIS TB PAVLOU DG
Citation
Sg. Pantelakis et al., FATIGUE-CRACK GROWTH-RETARDATION ASSESSMENT OF 2024-T3 AND 6061-T6 ALUMINUM SPECIMENS, Theoretical and applied fracture mechanics, 22(1), 1995, pp. 35-42
Citations number
31
Categorie Soggetti
Engineering, Mechanical",Mechanics
Journal title
Theoretical and applied fracture mechanics → ACNP
ISSN journal
01678442
Volume
22
Issue
1
Year of publication
1995
Pages
35 - 42
Database
ISI
SICI code
0167-8442(1995)22:1<35:FGAO2A>2.0.ZU;2-K
Abstract
A fatigue crack growth retardation model is developed. It considers a strip plastic zone with material hardening effect which is taken as on e of the basic mechanisms controlling fatigue crack growth. Crack grow th is treated incrementally and corresponds to the failure of material elements ahead of an existing crack after a certain critical number o f low cycle fatigue. Computed curves are correlated to test data obtai ned from the 2024-T3 and 6061-T6 aluminium specimens. Deviations from test data increase with increasing crack length.