| 2001 №11 (10) | 2001 №11 (12) |
The Paton Welding Journal, 2001, #11, 42-44 pages
Role of stress concentration reduction at high-frequency peening for fatigue resistance increase in welded joints
P.P. Mikheev, O.V. Vojtenko
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Experimental values of stress concentration factor (SCF), determined using polarization-optical (photoelasticity) method, are compared with estimated values, determined by measurement of parameters of fillet welds of T-joints in initial state and after high-frequency peening. The relation between the SCF reduction under the action of the high-frequency peening and increase in the fatigue resistance of the welded joints is shown.
Keywords: welded joint, fillet weld, geometric parameters of weld, stress concentration factor, calculation methods, photoelasticity method, high-frequency peening, increase of fatigue resistance
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