Abstract
Composites are highly significant due to their various advantages and natural fibre reinforced composites can be vastly used in automobile and aircraft interior applications. This paper principally deals with natural fibre reinforced composite (NFC) in which flax, aloevera, sisal fibres are selected to be reinforced in epoxy matrix (as inner laminate layers) and is used in combination with glass-epoxy (as outer laminate layers). Such composite beam structures are analysed in Ansys software employing FEM. The comparison for various NFCs is presented by evaluating effect on natural frequency due to various parametric variations like laminate stacking sequence, material hybridization, and presence of cut out.
Highlights
Over the past few years, various astounding improvements have been brought about in the field of new structural materials which have caught the attention of researchers to work on various aspects of composite materials
This decrease in natural frequency is owing to the reason that as E1/E2 ratio increases, the value of E2 and E3 decreases as E1 value is maintained constant throughout
Comparison of vibration characteristics of flax, aloevera and sisal reinforced composite beams has been done in this work using Ansys software
Summary
Over the past few years, various astounding improvements have been brought about in the field of new structural materials which have caught the attention of researchers to work on various aspects of composite materials. The immense interest in natural fibre reinforced composites (NFC) is in view of the significant benefits of these materials, which enhances their usage over several applications. Properties like flexural and energy absorption, damping of sound and vibration, etc., make natural fibre reinforced hybrid composites good for structural applications [4-6]. Meenakshi et al [8] experimentally analysed the mechanical behaviour of NFCs. Over the years, several analyses have been carried out on the various properties of hybrid composites [9, 10], but there are comparatively less works analysing the dynamic properties of these structures. Very few recent works discussed about vibration of natural material based composites [11-12]
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