Plastic zones about fatigue cracks in metals
β Scribed by G. Nicoletto
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 979 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0142-1123
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π SIMILAR VOLUMES
paper presents a model to evaluate the plastic zone size at the crack tip using mechanical properties of the material and loading conditions (Mode I). The parameter U controlling the effects of residual deformations has been incorporated. The model was found to compare well with Antolovich's model w
Almract--The plastic work required for a unit area of fatigue crack propagation U was measured by cementing tiny foil strain gages ahead of propagating fati~le cracks and recording the stress-strain curves as the crack approached. Measurements of U and plastic zone size in aluminum alloys 2024-T4, 2
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-prop