PSI - Issue 28

10

Anurag Singh et al. / Procedia Structural Integrity 28 (2020) 2206–2217 Anurag Singh/ Structural Integrity Procedia 00 (2019) 000 – 000

2215

Figure 8: Complete R-curve generated by extrapolating the initial and final data points from figure 7

Table 3: Fracture initiation toughness for ref and ec specimen from mode-I fracture tests

G IC (J/m Average Std. Dev.

2 )

Ref specimen

ec specimen

% increase/decrease with respect to ref specimen

138.8336 19.8366

276.1220 59.0570

98.89%

Figure 9: ERR values from the ref and ec specimens