The Paton Welding Journal, 2011, №10

2011 №10 (09)

2011 №10 (11)

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The Paton Welding Journal, 2011, #10, 36-39 pages  

Influence of preliminary cyclic loading on effectiveness of welded joint strengthening by high-frequency peening

V.V. Knysh, S.A. Solovej, A.Z. Kuzmenko

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The paper gives the results of studying the effectiveness of application of high-frequency mechanical peening to improve the residual fatigue life of tee welded joints on low-alloyed steels with accumulated fatigue damage. It is shown that the effectiveness of strengthening welded joints by this technology can vary in a broad range, depending on operation duration and level of applied stresses during operation.
 
 
Keywords: welded joints, fatigue, fatigue damage, highfrequency mechanical peening, cyclic fatigue life, strengthening effectiveness
 
 
Received:                ??.??.??
Published:               28.10.11
 
 
References
1. Garf, E.F., Litvinenko, A.E., Smirnov, A.Kh. (2001) Assessment of fatigue life of tubular connections subjected to ultrasonic peening treatment. The Paton Welding J., 2, 12-15.
2. Knysh, V.V., Kuzmenko, A.Z., Bojtenko, O.V. (2006) Increasing fatigue resistance of welded joints by high-frequency mechanical peening. Ibid., 1, 30-33.
3. Knysh, V.V., Kuzmenko, A.Z., Solovej, S.A. (2009) Increase of cyclic fatigue life of tee welded joints with surface cracks. Ibid., 1, 29-33.
4. Knysh, V.V., Solovej, S.A., Kuzmenko, A.Z. (2010) Improvement of cyclic fatigue life of welded joints with accumulated fatigue damage by high-frequency peening. Ibid., 10, 33-36.
5. Xiaohui, Z., Dongpo, W., Lixing, H. (2011) Analysis of the S-N curves of welded joints enhanced by ultrasonic peening treatment. Materials & Design, 32(1), 88-96.
6. Knysh, V.V., Solovej, S.A., Kuzmenko, A.Z. (2008) Accumulation of fatigue damage in tee welded joints of 09G2S steel in the initial condition and after strengthening by high frequency mechanical peening. The Paton Welding J., 10, 10-15.
7. Knysh, V.V., Valteris, I.I., Kuzmenko, A.Z. et al. (2008) Corrosion fatigue resistance of welded joints strengthened by high-frequency mechanical peening. Ibid., 4, 2-4.

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Suggested Citation

V.V. Knysh, S.A. Solovej, A.Z. Kuzmenko (2011) Influence of preliminary cyclic loading on effectiveness of welded joint strengthening by high-frequency peening. The Paton Welding J., 10, 36-39.

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