The Paton Welding Journal, 2005, #2, 18-28 pages
Influence of the dimensions of a specimen of aluminium alloy welded joint on the residual stressed state and fatigue resistance
V.A. Shonin, O.I. Gushcha, V.S. Mashin, V.S. Kovalchuk, A.Z. Kuzmenko
E.O. Paton Electric Welding Institute of the NASU.
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
Abstract
The paper presents the results of evaluation of residual stresses in butt welded joints of aluminium alloy AD33 (6061) 6 mm thick on specimens of different width (70-600 mm) produced by TIG and MIG welding processes. Experiments are used to demonstrate the influence of longitudinal and transverse tensile residual stresses on the strength and fatigue life of welded joints with a transverse weld under axial load.
Keywords: aluminium alloys, butt welded joints, fatigue resistance, strength, fatigue life, residual welding stresses, stress concentration, specimen dimensions
References
1. Trufyakov, V.I. (1973) Fatigue of welded Joints. Kiev: Naukova Dumka.
2. Shonin, V.A. (1982) Analysis of results of fatigue tests of AMg6 alloy welded joints. Avtomatich. Svarka, 3, 71–73.
3. Sanders, W.W., Day, R.H. (1983) Fatigue behavior of aluminum alloy weldments. WRS Bull, 266.
4. Dvoretskii, V.I., Mikheev, P.P., Shonin, V.A. (1984) A procedure of fatigue analysis of aluminum structure welded joints. IIWDoc XIII-1138-84.
5. Kelsy, R.A., Nordmark, G.E. (1984) Effect of residual stresses on fatigue resistance of aluminium alloy butt joints. In: Proc. of Soviet-American Seminar on Welding of Aluminium Alloys of Cryogenic and General Purposes, Kiev, June 1981. Kiev: Naukova Dumka.
6. Shonin, V.A. (1984) Fatigue resistance of aluminium alloy welded Joints taking into account the effect of residual stresses. Syn. of Thesis for Cand. of Techn. Sci. Degree. Kiev.
7. RD 50-551-85. Calculations and strength tests. Computational-experimental methods of evaluation of welded joint fatigue resistance: Proc. Guidelines. Moscow: Standart.
8. Shonin, V.A. (1990) Fatigue limit of AMg6 alloy welded joints. Avtomatich. Svarka, 4, 12–18.
9. RD 50-694-90. Reliability in engineering. Probabilistic method of calculation of welded joint fatigue. In: Proc. Guidelines. Moscow: Standart.
10. Kazimirov, A.A., Nedoseka, A.Ya. (1962) About residual stresses and strains arising in welding of AMg5V alloy. Avtomatich. Svarka, 10, 16–21.
11. Kiselyov, S.N., Khavanov, V.A., Skornyakov, L.M. et al. (1966) Special features of distribution of surface residual stresses in welded plates of avial alloy. Svarochn. Proizvod- stvo, 12, 6–8.
12. Tanaka, E., Hirata, K., Takeuchi, K. (1970) Residual stress in butt-welded 5083 aluminum alloys. Studies on residual stresses in welded joints of aluminum alloys. Light Metals, 1, 7–15.
13. Nedoseka, A.Ya. (1974) Residual stresses in plates during welding of butt joint. Avtomatich. Svarka, 11, 32–38.
14. Guz, A.N., Makhort, F.G., Gushcha, O.I. et al. (1974) Principles of ultrasonic non-destructive method of stress de¬termination in solids. Kiev: Naukova Dumka.
15. Okerblom, N.O. (1950) Welding stresses in metal structu¬res. Moscow-Leningrad: Mashgiz.
16. Makhnenko, V.I. (1976) Calculation methods of study of weld stress and strain kinetics. Kiev: Naukova Dumka.
17. Trufyakov, V.I., Mikheev, P.P., Shonin, V.A. et al. (1976) Effect of residual stresses on fatigue resistance of aluminium alloy welded joints. Avtomatich. Svarka, 5, 37–39.
18. Shonin, V.A. (1978) Effect of residual stresses on fatigue resistance of load-carrying element of AMg6 alloy in the point of welding-up transverse stiffeners. Ibid., 1, 70–71.
19. Mikheev, P.P., Shonin, V.A. (1981) Fatigue resistance of aluminium alloy welded joints allowing for the stressed state. In: Proc. of Soviet-American Seminar on Welding of Aluminium Alloys of Cryogenic and General Purposes, Kiev, June 1981. Kiev: Naukova Dumka.
20. Maddox, S.J. (2003) Review of fatigue design rules for wel¬ded structures. The Paton Welding J., 10/11, 94–99.
21. Guz, A.N., Makhort, F.G., Gushcha, O.I. (1977) Introduction to acousto-elasticity. Kiev: Naukova Dumka.
22. Makhnenko, V.I., Mosenkis, R.Yu. (1985) Calculation of coefficients of stress concentration in welded joints with butt and fillet welds. Avtomatich. Svarka, 8, 7–18.
23. Osaulenko, L.L., Kotenko, E.V. (1981) Biaxial tension and sensitivity of material to stress concentration. Problemy Prochnosti, 3, 21–25.
Suggested Citation
V.A. Shonin,
O.I. Gushcha,
V.S. Mashin,
V.S. Kovalchuk,
A.Z. Kuzmenko (2005) Influence of the dimensions of a specimen of aluminium alloy welded joint on the residual stressed state and fatigue resistance.
The Paton Welding J., 02, 18-28.