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Experimental investigation on the effect of stacking sequence on mechanical properties of the hybrid composites designed for light impact loads.

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Murthy BRN1, Ravindranath B S2*, Suhas K1
» doi: 10.48047/ecb/2023.12.10.922

Abstract

Many materials are being developed today to withstand light impact loads for a variety of applications, including the manufacturing of vehicle rider helmets. The materials used for these applications should be lightweight and able to sustain the impact loads without suffering any serious damage. To this day, numerous researchers have generated a variety of composite materials with favorable strength to weight ratios. In the current research, an effort was made to create a composite material of this type that is both affordable and capable of withstanding light impact force. For the current experiment, three full composites made of carbon, aramid, and glass fibres as well as three hybrid composites made from the combination of the above-mentioned fibres are created by stacking the two layers of each fibre in various combinations and by following various stacking sequences. The general-purpose polymer is the matrix material used for all six test specimens. The ASTM standards were followed for conducting mechanical testing such as the Tensile test, Short beam bending/interlaminar shear stress test, Flexural/Three point bending test, Izod test, and Hardness test. The findings show that full carbon composite specimens outperform the other evaluated specimens in the majority of the tests. In the majority of the tests, the full glass fibre composites exhibit normal performance. However, compared to other studied combinations, its mechanical properties are improved when coupled with carbon fibres. As a result, carbon and glass hybrid composites perform well and are more cost-effective than full carbon composites for light impact loads.

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