Fatigue crack growth analysis of welded aluminium RHS T-joints with manipulated residual stress level

Fatigue and Fracture of Engineering Materials and Structures

Volumn 29, Issue 2, 2006, Pages 113-122

  Mann, Torsten ^a   Tveiten, B W ^b   Harkegard G ^a  

^a NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

^b SINTEF MATERIALS AND CHEMISTRY   (Norway)

Author keywords

Crack propagation; Fatigue; Lifetime prediction; Mean stress; Welded joints

Indexed keywords

BEAMS AND GIRDERS; CRACK PROPAGATION; CRACKS; FATIGUE OF MATERIALS; RESIDUAL STRESSES; WELDS;

FATIGUE CRACK GROWTH; LIFETIME PREDICTION; MEAN STRESS; RECTANGULAR HOLLOW SECTION (RHS); WELDED ALUMINUM T-JOINT;

ALUMINUM;

EID: 33645987918     PISSN: 8756758X     EISSN: 14602695     Source Type: Journal    
DOI: 10.1111/j.1460-2695.2006.00970.x     Document Type: Article

References (25)

1. Sharp, M. L., Nordmark, G. E. and Menzemer, G. C. (1996) Fatigue Design of Aluminium Components and Structures. McGraw Hill, New York.
2. Walker, K. (1970) The effect of stress ratio during crack propagation and fatigue for 2024-T3 and 7075-T6 aluminum. In: Effects of Environment and Complex Load History on Fatigue Life, ASTM STP 462, Philadelphia, USA, pp. 1-14.
3. Dowling, N. E. (1999) Mechanical Behaviour of Materials. Prentice Hall, London.
4. CEN. (1998) ENV 1999-2: Eurocode 9: Design of aluminium structures - Part 2: Structures susceptible to fatigue. European Committee for Standardisation.
5. Bu, R. and Stephens, R. I. (1986) Comparison of short and long fatigue crack growth in 7075-T6 aluminum. Fatigue Frac. Eng. Mat. Struct. 9, 35-48.
6. Hudson, C. M. (1969) Effect of stress ratio on fatigue-crack growth in 7075-T6 and 2024-T3 aluminum-alloy specimens. NASA TN D-5390.
7. Dur, J. A. R., Castro, J. T. P. and Filho, J. C. P. (2003) Fatigue crack propagation prediction by cyclic plasticity damage accumulation models. Fatigue Fract. Eng. Mat. Struct. 26, 137-150.
8. Wu, X. R., Newman, J. C., Zhao, W., Swain, M. H., Ding, C. F. and Phillips, E. P. (1998) Small crack growth and fatigue life predictions for high-strength aluminium alloys: Part I - experimental and fracture mechanics analysis. Fatigue Fract. Eng. Mat. Struct. 21, 1289-1306.
9. Fleck, W. G. and Anderson, R. B. (1969) A mechanical model of fatigue crack propagation. In: Proceedings of the second International Conference on Fracture, Brighton (Edited by Pratt, P. L.). Chapman & Hall, London.
10. MCIC. (1972) Damage Tolerant Design Handbook. Metals and Cheramics Information Center, Battelle.
11. Elber, W. (1971) The significance of fatigue crack closure. In: Damage Tolerance in Aircraft Structures. ASTM STP 486, Philadelphia, USA, pp. 230-242.
12. Schijve, J. (1981) Some formulas for the crack opening stress level. Eng. Frac. Mech. 14, 461-465.
13. Maddox, S. J. (1975) An analysis of fatigue cracks in fillet welded joints. Int. J. Fract. 11, 221-243.
14. Bowness, D. and Lee, M. M. K. (2000) Prediction of weld toe magnification factors for semi-elliptical cracks in T-butt joints. Int. J. Fatigue 22, 369-387.
15. Bowness, D. and Lee, M. M. K. (2000) Weld toe magnification factors for semi-elliptical cracks in T-butt joints - comparison with existing solutions. Int. J. Fatigue 22, 389-396.
16. Pearson, S. (1975) Initiation of fatigue cracks in commercial aluminium alloys and the subsequent propagation of very short cracks. Eng. Fract. Mech. 7, 235-247.
17. El Haddad, M. H., Smith, K. N. and Topper, T. H. (1979) Fatigue crack propagation of short cracks. J. Eng. Mat. Tech. 101, 42-46.
18. Härkegård, G. (1981) An effective stress intensity factor and the determination of the notched fatigue limit. In: Proceedings of the International Symposium of Fatigue Thresholds, Stockholm, pp. 867-879.
19. Newman, J. C. Jr. and Raju, I. S. (1981) Empirical stress-intensity factor equation for the surface crack. Eng. Fract. Mech. 15, 185-192.
20. Tveiten, B. W. (2003) The Fatigue Strength of RHS T-joints. SINTEF report STF24 A03220, Trondheim.
21. Smith, K. N., Watson, P. and Topper, T. H. (1970) Stress-strain function for the fatigue of metals. J. Mat. 5, 767-78.
22. Berkovits, A., Kelly, D. W. and Di, S. (1998) Considerations of the effect of residual stresses on fatigue of welded aluminium alloy structures. Fatigue Fract. Eng. Mat. Struct. 21, 159-170.
23. Myhr, O. R., Klokkehaug, S., Fjær, H. G., Grong, Ø. and Kluken, A. O. (1998) Modelling of microstructure evolution, residual stresses and distortions in 6082-T6 aluminium weldments. Welding Journal 77, 286-292.
24. Myhr, O. R., Grong, Ø., Klokkehaug, S., Fjær, H. G. and Kluken, A. O. (2001) Modelling of the microstructure and strength evolution during ageing and welding of Al-Mg-Si alloys. In: 6th International Seminar on Nummerical Analysis of Weldability. Graz-Seggau, Austria.
25. Fjær, H. G., Myhr, O. R., Klokkehaug, S. and Holm, S. (2001) Advances in aluminium weld simulations applying WELDSIM. In: 11th International Conference om Computer Technology in Welding. Columbus, Ohio, USA.