Journal of Composites / 2014 / Article / Tab 2

Research Article

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

Table 2

Influence of inner span on critical mode II interlaminar fracture toughness of carbon/epoxy 4ENF specimens.

MethodInner span (mm) (kJ/m2)
NL5% or maxPropagation

4ENF [39]50 0.6820.9021.002
70 0.8541.0111.047

4ENF [12]50 0.5250.6920.767
70 0.5630.6660.690

SENF [24, 25]1.0411.2611.225

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19.