Page 183 - Template Tesis UTM v2.0

700/s 1125/s 2310/s
300

250

200
Stress (MPa) 150

100

50

0
0 0.02 0.04 0.06 0.08 0.1
Strain

Figure 4.37 Effect of strain rates on the stress-strain curves of [G/F]3G

4.10.3 The Effect of Hybridisation on the Stress-Strain Curve between Hybrid
and Pure Composites

The effects of hybridisation on the high strain rate loadings of the E-
glass/basalt, E-glass/jute and E-glass/flax, with the pure composites of E-glass, basalt,

jute and flax reinforced epoxy are presented in Figure 4.38 to 4.40. As can be seen in
Figure 4.38 to 4.40, the hybridisation of E-glass with basalt, jute and flax fibres have

positive significant impact on the stress-strain curves. As predicted, the G7 composite

exhibits the higher maximum stress compared to the natural laminated composites.
However, the hybridisation of E-glass/basalt (Figure 4.38) illustrates a slightly

difference pattern, with hybrid composites of G2/B3/G2 and [G/B]3G showing higher

linear increased up to the strain of approximately 0.09, then, the compressive stress
started to decrease linearly. In the strain ranging between 0.000 to 0.043, the G7

laminate dominated the dynamic compression of stress-stress curve. However, this is
superseded by B7 laminate with the strain range of 0.075 up to 0.124. It is observed

that the effect of hybridisation on the E-glass with basalt fibre has positively caused

150