Effect of Stacking Sequence on Flexural and Dynamic Mechanical Properties of Hybrid Sisal/Glass Polyester Composite

In present study, flexural properties in terms of break load, percentage elongation, flexural strength and flexural modulus, and dynamic mechanical analysis (DMA) in terms of storage modulus (), loss modulus (), damping , glass transition temperature and effectiveness constant of reinforcement of hybrid sisal/glass fibre reinforced polyester composite are investigated. Polyester based hybrid composites are prepared by Hand lay-up technique followed by static compression having constant 25 wt.% of fibre content with various stacking sequences. A significant improvement in flexural properties of sisal fibre reinforced polyester composite is observed by incorporation of glass fibre. In addition, the stacking sequence has great influences on flexural and dynamic mechanical properties of hybrid composites