𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Influence of compressive plastic zone at the crack tip upon fatigue crack propagation

✍ Scribed by Y. Xiong; X.X. Hu; J. Katsuta; T. Sakiyama; K. Kawano

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
548 KB
Volume
30
Category
Article
ISSN
0142-1123

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper, based on physical meanings of hysteresis loops denoting a relationship between loads and strains near the fatigue crack tip, variations of the tensile plastic zone in loading and the compressive plastic zone in unloading as well as the effects on acceleration, retardation and non-propagation in fatigue crack propagation are studied under different amplitude loadings. To the two closure types obtained from tests, the influence of each zone of a hysteresis loop upon fatigue crack propagation is evaluated and the effects of the compressive plastic zone at the crack tip on fatigue crack propagation are ascertained.

πŸ“œ SIMILAR VOLUMES

The form of crack tip plastic zones
The form of crack tip plastic zones
✍ T.M. Banks; A. Garlick πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 707 KB
Elastic–plastic finite element analysis
Elastic–plastic finite element analysis of the effect of compressive loading on crack tip parameters and its impact on fatigue crack propagation rate
✍ J. Zhang; X.D. He; B. Suo; S.Y. Du πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 333 KB

The effects of applied compressive stress on the crack tip parameters and their implications on fatigue crack growth have been studied. Four center-cracked panel specimens with different crack lengths are analysed using finite element method. The results show that under tension-compression loading t

On the size of plastic zone ahead of cra
On the size of plastic zone ahead of crack tip
✍ D. Kujawski; F. Ellyin πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 527 KB

A method for the crack tip analysis of a tensile loaded crack (mode I) due to yielding of the material is developed. The stress/strain distribution within the plastic zone, as well as size of the plastic zone are presented. The development is based on the energy interpretation of the strain hardenin