Issue 30

A. Risitano et alii, Frattura ed Integrità Strutturale, 30 (2014) 201-210; DOI: 10.3221/IGF-ESIS.30.26 205 the temperature analysis, the measurements were carried out for the three types of specimens (smooth and notched) on the temperature values measured at the centre of the specimen (see Fig. 11). The collected data are the same reported in the above mentioned diagrams. Density g/cm 3 7.87 Brinell Hardness 163 Ultimate Stress [MPa] 810 Yield Stress [MPa] 725 Young Modulus [GPa] 210 Poisson Modulus 0.29 Ultimate Elongation % 16 Resilience (Izod) [J] 30 Thermal Conductivity [W/m*K] 51.9 Specific Heat [J/g*K] 0.502 Coefficient of linear expansion [1E-06/K] 15.1 Electrical Resistivity [Ohm*cm] 1.42E-05 Table 2 : Physical and mechanical properties. Sorge Specimens Autocorrelation “eye estimated” AISI 1045-P1 SMOOTH (12.5x5) 164.5 172.0 AISI 1045-P2 SMOOTH (12.5x5) 168.9 170.0 AISI 1045-P3 NOTCHED (10.9x5) 183.2 175.0 AISI 1045-P4 NOTCHED (10.9x5) 275.1 225.0 AISI 1045-P5 NOTCHED (8.3x5) 264.7 250.0 AISI 1045-P6 NOTCHED (8.3x5) 212.6 195.0 Table 3 : Values of the detected stresses referred to the 6 (P1-P6) specimens. Figure 1 : Qualitative stress-strain (  ) curve and Temperature-strain (  T-  ) curve of a static monoaxial traction test (indication of  0 ).