Issue 50

Ch. Apostolopoulos et alii, Frattura ed Integrità Strutturale, 50 (2019) 548-559; DOI: 10.3221/IGF-ESIS.50.46 553 aggressive conditions, for both deformations imposed (Δε= ±2.5% and Δε= ±4%) and for both free lengths defined (6D and 8D). Whereas, consistency was recorded for the next 45 days, up to the completion of the exposure period of 90 days. On the other hand, B450c steel grade, recorded an initial drop on its cyclic life, the mean value of which was higher than 50% for both deformations (Δε= ±2.5% and Δε= ±4%) and for both free lengths defined (6D and 8D) and an extra dron higher than 12.5% up to the 90 days, for Δε= ±2.5% (for both free lengths 6D and 8D). 0 2 4 6 8 10 12 0 50 100 150 200 250 300 350 400 0 2 4 6 8 10 12 0 100 200 300 400 500 600 Ncycles Mass Loss (%) Energy (MPa) Energy stock-mass loss-6D Ncycles-mass loss-6D Energy stock-mass loss-8D Ncycles-mass loss-8D Figure 3 : A graphical depiction of energy stocks and number of cycles of the B400c (Φ16) specimens tested in LCF, in reference to their corresponding mass loss, before and after their exposure to corrosive conditions. 0 10 20 30 40 50 60 70 0 50 100 150 200 250 300 350 400 450 500 0 2 4 6 8 10 12 0 100 200 300 400 500 600 700 800 Ncycles Mass Loss (%) Energy (MPa) Energy stock-mass loss-6D Ncycles-mass loss-6D Energy stock-mass loss-8D Ncycles-mass loss-8D Figure 4 : A graphical depiction of energy stocks and number of cycles of the B450c (Φ16) specimens tested in LCF, in reference to their corresponding mass loss, before and after their exposure to corrosive conditions.