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displayed the highest flexural strength and modulus over the rest of hybrid
formulations.
Nahar et al. [51] studied the flexural properties between matrix PP, jute/PP and
bamboo/PP. The presence of jute reinforced PP increases the flexural strength and
modulus in comparison with neat PP. The similar trend was observed in tensile test
whereas bamboo/PP exhibited higher bending properties than jute/PP.
2.13 Quasi-Static Indentation Properties of Fibre Reinforced Polymer
Composites
Quasi static indentation was investigated on the CSM glass fibre toughened
polyester resin with loading rates of 1, 10, 100 and 500 mm/min using hemispherical
indenter with diameter 12.5 mm. It was found that the maximum load increased up to
6.5, 19.0 and 20.9 % when the loading rates were increasing from 1 to 10, 10 to 100
and 1 to 500 mm/min, respectively. Moreover, the capacity of energy absorption of
the tested specimens exhibited the similar trend which highly significant on the effect
of strain rates as depicted in Figure 2.19 [81].
Energy (J)
Extension (mm)
Figure 2.19 Energy absorption with different loading rates of CSM/polyester [81]
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