Issue 51

A. A. Lakhdari et alii, Frattura ed Integrità Strutturale, 51 (2020) 236-253; DOI: 10.3221/IGF-ESIS.51.19 248 Figure 17 : Radial constraints at the moment 18 t  . Figure 18 : Tangential constraints at the moment 18 t  . Figure 19 : Axial constraints at the moment 18 t  .