Issue 51

M. S. Bennouna et alii, Frattura ed Integrità Strutturale, 51 (2020) 254-266; DOI: 10.3221/IGF-ESIS.51.20 262 Figure 15 : Evolution of the equivalent plastic strain for a path of the lower surface using different groove angles. Figure 16 : Evolution of maximum equivalent plastic deformations for different angles of the die groove. Case of a path of the upper face Fig. 18 shows the evolution of equivalent plastic strain along a path on the upper surface for different values of the depth of the groove. It can be noted that the highest level of plastic strain is obtained with a depth H = 5 mm, whereas the lowest level of plastic strain is obtained by the depth of 8 mm.