Issue 37

Y. Wang et alii, Frattura ed Integrità Strutturale, 37 (2016) 241-248; DOI: 10.3221/IGF-ESIS.37.32 245 Figure 4: Comparison of observed and predicted orientation of crital plane by the MDM. Critical plane orientation The predicted orientation of the critical plane versus experimental orientation of Stage I crack plane for S45C steel, 1050 QT steel and 304L steel is reported in Figs 3 and 4. As it can be seen from these figures, the predictions made through the MVM and the MDM are characterised by the same level of accuracy, with 90% of the data falling within an error band of 20%. Figure 5: Comparison of observed and predicted fatigue lives by Procedure A.