Issue 46

T. Bounini et alii, Frattura ed Integrità Strutturale, 46 (2018) 1-13; DOI: 10.3221/IGF-ESIS.46.01 6 Table 5: Plates material other mechanical and thermal characteristics. Table 6: Welding parameter (speed of rotation - welding speed). (a) (b) Figure 6: a) Variation of the elastic limit R e as a function of the rotational speed . b) Variation of the elastic limit R e as a function of the welding speed. Density (Kg/m 3 ) 2660 Thermal conductivity( w/m.K) 110 -140 Thermal expansion coefficient K -1 24.2 10 -6 Specific heat (J/Kg°C) 900 Speed of rotation ω [rpm] 710 1000 1400 2000 Welding speed V [mm/min] 40 80 100 200 400 40 80 100 200 400 40 80 100 200 400 40 80 100 200 400