Issue 39

J. Klon et alii, Frattura ed Integrità Strutturale, 39 (2017) 17-28; DOI: 10.3221/IGF-ESIS.39.03 26 Figure 8 : Maximum width of the FPZ extent envelope for all specimen sizes: Dependencies plotted individually for each notch length (left), regression of all the data by power function. Experiment by Vidya Sagar & Raghu Prasad. The range of specimen sizes tested in this campaign was considerably smaller than that in [24]; however, extents of cumulative FPZ estimated from localized AE events were reported. Fig. 9 shows displays of AE events locations at the end of the fracture test. Unfortunately, only very limited amount of these results from the whole campaign is available in the published papers [25,26]. Thus, the comparison of the cumulative FPZ extents from AE measurement with that of the proposed model is limited here only to the cases with the shortest notches. Similarly to Fig. 7, the diverging parts of the FPZ envelopes are in gray and the estimates of these parts based on the constant R in this portion of the specimen ligament are displayed by the red dotted line. A relatively good agreement was obtained.  0 = 0.15 S M L Figure 9 : Notched beams of all tested sizes with the shortest relative notch length with the indication of the envelope of the FPZ for the FEM simulated response compared to localized AE events (top figure adopted from [26], middle and bottom from [25]).