Compressive Properties Of Jute/Kevlar Under Static And Impact Loading
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Date
2022-07-24
Authors
Rosli, Fadlhlin Sakina
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Hybrid composite are in high demand due to their superior qualities. Natural
fibres have good mechanical qualities and are less expensive than synthetic fibres,
providing them a potential alternative to synthetic fibers. Due to problems such as their
lower impact strength, researchers concentrated on integrating these two fibres as an
alternative to overcome the single fibre's limitations. Thus, this analysis focused on the
hybridisation of natural and synthetic fibres with the effect of static and impact loading
towards the layer sequence and the mechanical properties of Jute–Kevlar- epoxy-based
hybrid composite. The composite samples of jute and Kevlar are prepared to have four
different layup configurations (i.e., Jute-Jute-Jute [JF], Jute-Kevlar-Jute [H1], Kevlar-Jute-Kevlar [H2], and Kevlar-Kevlar-Kevlar [KVF]). The mechanical properties of the
composites like compressive strength have been evaluated.
According to the results obtained, the material behaviour or mechanical
properties of composites are considerably affected by layer sequences. It is found that
between the four types of layup configuration, jute fiber (JF) has the highest
compressive strength compared to full Kevlar (KVF), Hybrid jute (H1) and hybrid
Kevlar (H2) under dynamic loading. Kevlar has the lowest compressive strength, which
indicate low compressive strength, which can lead to the separation of layers within a
laminate under compression. However, under static loading, hybrid jute (H1) shows the
highest compressive strength, while, hybrid Kevlar (H2) has the lowest compressive
strength. The failures mode of the specimens is also observed in this experiment using
Scanning Electron microscopic (SEM). Under static loading, the damages were
primarily of delamination, fibre breakage, interfacial debonding, and fibre pull-out,
while the failure of the high strain rate condition consisted primarily of kink band, fibre
breakage, fibre matrix debonding, edge failure, and fibre thinning.