Issue 42

M. Peron et alii, Frattura ed Integrità Strutturale, 42 (2017) 205-213; DOI: 10.3221/IGF-ESIS.42.22 211 Figure 6 : Fatigue behaviour of uncoated and galvanized welded steel at R = 0 as a function of the averaged local strain energy density. Scatter band of 900 experimental data of welded joints made of structural steel is superimposed. A CKNOWLEDGMENTS he authors wish to remember with great gratitude Professor Paolo Lazzarin, master of science and life, under whose leadership the research presented in this paper has been planned. Finally they want to express sincere thanks to Ing. Emiliano Guido of Zincherie Valbrenta for his active and valuable collaboration. R EFERENCES [1] Di Cocco, V., Sn and Ti influences on intermetallic phases damage in hot dip galvanizing, Frattura ed Integrità Strutturale, 22 (2012) 31-38. [2] Di Cocco, V., Zortea, L., Influence of dipping time on cracking during bending of hot dip galvanized coatings with Sn and Ti contents, Frattura ed Integrità Strutturale, 14 (2010) 52-63. [3] Vogt, J. B., Boussac, O., Foct, J., Prediction of fatigue resistance of a hot-dip galvanized steel, Fatigue Fract. Eng. Mater. Struct. 24 (2001), 33–39. [4] Bergengren, Y., Melander, A., An experimental and theoretical study of the fatigue properties of hot- dip-galvanized high-strength sheet steel, Int. J. Fatigue, 14 (1992) 154–162. [5] Browne, R. S., Gregory, N., Harper, S., The effects of galvanizing on the fatigue strengths of steels and welded joints, Proceedings of a Seminar on Galvanizing of Silicon-Containing Steels, (1975) 246 – 264. [6] Nilsson, T., Engberg, G., Trogen, H., Fatigue properties of hot-dip galvanized steels, Scand. J. Metall., 18 (1989) 166- 175. [7] Jiang, J. H., Ma, A. B., Weng, W. F., Fu, G. H., Zhang, Y. F., Liu, G. G., Lu, F. M., Corrosion fatigue performance of pre-split steel wires for high strength bridge cables, Fatigue Fract Eng M, 32 (2009) 769–779. [8] Yang, W. J., Yang, P., Li, X. M., Feng, W. L., Influence of tensile stress on corrosion behaviour of high-strength galvanized steel bridge wires in simulated acid rain, Mater Corros, 63 (2012) 401–407. [9] Berchem, K., Hocking, M. G., The influence of pre-straining on the high-cycle fatigue performance of two hot-dip 0.01 0.10 1.00 10.00 1.00E+04 1.00E+05 1.00E+06 1.00E+07 Averaged Strain Energy Density ΔW (Nmm/mm 3 ) Number of cycles to failure, N ΔW 2.3% ΔW 50% ΔW 97.7% Bare HDG 0.192 k=1.5 Ps = 97.7 % Ps = 2.3% 0.058 0.105 S355- R = 0 Scatter Index T W = 3.3  W 50% = 0.105 Nmm/mm 3 (N = 2 ∙ 10 6 ) R C = 0.28 mm T