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Untreated Treated Untreated Treated
Tensile strength (MPa) Tensile modulus (GPa)
Hybrid formulation Hybrid formulation
Figure 2.16 Tensile properties of hybrid composite [83]
Fiore et al. [50] investigated on the tensile properties between glass/basalt and
glass laminates. When one layer of glass was replaced with basalt layer, the tensile
strength and modulus were improved between 14 to 17.3 % and 16 to 29.2 %,
respectively. Moreover, replacing two glass layers with basalt significantly increased
about 45 and 70 % of the tensile strength and modulus in comparison with GFRP. It
can be concluded that the quantity and arrangement of basalt layers in hybrid
composites of glass/basalt has highly influenced their properties.
Ahmed and Vijayarangan [58] studied on pure jute and jute/glass toughened
polyester on the effect of different numbers and position of glass layers in the hybrid
composites. The presence of glass layer at both extreme sites contributed in enhancing
the tensile strength and modulus of 53 and 30 % respectively, in comparison with pure
jute laminates. The effect of stacking sequence between sample [GG/JJJJJJ/GG] and
[G/JJ/G/JJ/G/JJ/G] has gained author’s attention because it is highly correlated with
the types of stacking sequence discuss in the present study, namely sandwich-like (SL)
and intercalation (IC) sequences. Sample [G/JJ/G/JJ/G/JJ/G] recorded 8.4% higher on
tensile strength while [GG/JJJJJJ/GG] 8.8% higher on the tensile modulus for the
similar weight fraction of jute and glass fibres.
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