Syakirin, Mhd. (2025) Analisa Kekuatan Mekanik Komposit Hybrid Berpenguat Serat Sisal (Agave Sisalana) Dengan Penambahan Serat Daun Nanas Sebagai Bahan Dasar Alternatif Pembuatan Fairing Pada Sepeda Motor. Other thesis, Universitas Islam Riau.

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Abstract

Composite is a combination of two or more types of natural fibers that have been proven to improve the mechanical characteristics of the resulting material. The combination of sisal fiber and pineapple leaf fiber with polyester resin is expected to produce composite materials that are not only strong and light, but also more resistant to environmental conditions. To determine the mechanical properties, composite testing is needed for bending strength and impact toughness. With variations in fractions of 50% resin + 20% sisal fiber + 30% pineapple leaf fiber, 50% resin + 25% sisal fiber + 25% pineapple leaf fiber and 50% resin + 30% sisal fiber + 20% pineapple leaf fiber. With the aim of getting the right composition and increasing the usefulness of natural fibers. The results of this study are expected to be used as an alternative raw material for automotive components. Specimen making and testing procedures use ASTM D790 for bending and ASTM D5942 for impact. The highest bending strength test results were fractions of 50% resin + 30% sisal fiber + 20% pineapple leaf fiber with a bending value of 52.18N/mm2. And the highest impact test results were fractions of 50% resin + 30% sisal fiber + 20% pineapple leaf fiber with an energy value of 37.68j getting an impact value (Hi) of 0.418j/mm2. It can be concluded that the more sisal fiber composition, the better the toughness and strength of the specimen.

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