Page 125 - Template Tesis UTM v2.0

CHAPTER 4

RESULTS AND DISCUSSION

4.1 Introduction

This section discusses on static and dynamic data analysis of the hybrid and

pure composites. Hybrid composites were produced with synthetic E-glass fibre and
basalt, jute or flax natural fibres, based on SL and IC sequences. Three types of hybrid

composites were produced in this study which are E-glass/basalt, E-glass/jute and E-
glass/flax. Pure composites of E-glass, basalt, jute and flax reinforced epoxy were also

fabricated for comparison purposes. Furthermore, the static and dynamic behaviours
of the specimens were characterised via tension, flexural, quasi-static indentation and

low velocity impact, as well as the split Hopkinson pressure bar (SHPB). The effects

of stacking sequences between SL and IC sequence were characterised based on the
tensile strength, tensile modulus, flexural strength, flexural modulus, quasi-static

indentation peak force, energy absorption and material sensitivity on the various strain
rates. This study is also investigated the effects of hybridisation to determine the role

of hybrid constituents in increasing the mechanical properties of the hybrid composites
or vice versa. In addition, the effects of material selection based on specific properties

were investigated as well to configure the best combination of E-glass either with

basalt, jute or flax fibres exhibits superior resistance to static and dynamic loadings.
Subsequently, the contribution and potential usage of basalt, jute and flax in creating

natural fibres-based hybrid composites are discussed as part of the green technology
development.

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