| 2000 №09 (10) | 2000 №09 (12) |
The Paton Welding Journal, 2000, #9, 69-71 pages
Determination of cyclic life of structure elements in arresting fatigue cracks
V.V. Knysh
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Method of calculated determination of a cyclic life of structure elements with propagating fatigue cracks at their arresting by an artificially-induced field of residual compressive stresses ahead of tips of these cracks has been developed on the basis of approaches of fracture mechanics.
Keywords: fatigue crack, crack arresting, residual stresses, cyclic life, stress intensity factor, effective range
References
1. Khertsberg, R.V. (1989) Deformation and fracture mechanics ofstructural materials. Moscow: Mernllurgia.2. Trufyakov, V.I., Knysh, V.V., Mikheev, P.P. et al. (1990) Method of calculated esciination of a cyclic crack resistance of welded joints with allowance for effect of residual stresses. Automaticheskaya Svarka, 1, 1 - 4.
3. Panasyuk, V.V. (1968) Limiting equilibrium of brittle bodies zeith crocks. Kyiv: Naukova Dumka.
4. Kachanov, I. M. (1974) Fundamentals of fracture mechanics. Moscow: Nauka.
5. Trufyakov, V.I., Knysh, V.V., Mikheev, P.P. et al. (1987) Dependence of rate of fatigue crack propagation on cycle asymmetry. Problemy Prochnosti, 3, 5-7.