Page 136 - Template Tesis UTM v2.0

140 Specific Tensile Strength Specific Tensile Modulus 12

120 10
Specific Tensile Strength (MPa.dm 3 /kg) 80 8 Specific Tensile Modulus (GPa.dm 3 /kg)

100

6
60

4
40

20 2

0 0
[G/B]3G [G/J]3G [G/F]3G
S5
S4
S6

Figure 4.6 Specific tensile strength and modulus of IC sequence hybrid
composites

4.6.4 Tensile Fracture Analysis

The tensile strength and modulus of hybrid structures of the E-glass/basalt, E-

glass/jute and E-glass/flax are insignificant between the SL and IC sequences. In this
light, almost all the tested specimens in this loading configuration failed due to fibre

breakage as evidenced in Figure 4.7. Moreover, the G2/B3/G2 and [G/B]3G hybrid
laminate shows the failure interests with the first failure of E-glass layer, followed by

the basalt layers, as shown in Figures 4.7(a) and 4.7(b). However, the hybrid composite
laminates of E-glass/jute and E-glass/flax exhibit the dominant failure mode caused by

the weakness of jute and flax fibres, respectively. These kinds of failures agreed with

the fibre bundle theory as previously found by Jawaid et al. in the study of pineapple
leaf/kenaf phenolic hybrid composite, whereas at normal strain rates the weaker fibre

break first, then followed by stronger fibres [155].

The failure of the hybrid composite laminates with IC sequence are governed

by the extensive degree of fibre pull-outs and fibre breakage, as shown in comparison

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