Research Article

Generation of R-Curve from 4ENF Specimens: An Experimental Study

Table 1

Influence of fiber volume fraction on mode II toughness [21].

Range of fiber volume fraction, Initiation toughness (kJ/m2)Propagation toughness (kJ/m2)
Mean (SD)Mean (SD)

40–45%2.13 (0.07)3.04 (0.45)
>55%0.98 (0.18)1.64 (0.35)