Issue 52

R. Hadj Boulenouar et alii, Frattura ed Integrità Strutturale, 52 (2020) 128-136; DOI: 10.3221/IGF-ESIS.52.11 134 Figure 9: Variation of the strains (  xx ). Figure 10: Variation of the strains (  xy ). Figure 11: Variation of the strains (  yy ).