Analisis Hasil Uji Sifat Mekanis Kekuatan Tarik dan Ketangguhan Impak pada Komposit Serat Karbon Epoksi dengan Variasi Jumlah Laminasi

Hermawati, Tarysa Rimadhani (2026) Analisis Hasil Uji Sifat Mekanis Kekuatan Tarik dan Ketangguhan Impak pada Komposit Serat Karbon Epoksi dengan Variasi Jumlah Laminasi. Undergraduate thesis, Universitas Muhammadiyah Surabaya.

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Abstract

Material komposit serat karbon epoksi banyak digunakan pada aplikasi struktural ringan karena memiliki rasio kekuatan terhadap berat yang tinggi. Penelitian ini menganalisis pengaruh variasi jumlah lapisan dan orientasi serat terhadap sifat mekanik komposit serat karbon epoksi yang difabrikasi menggunakan metode vacuum bagging.
Spesimen dibuat melalui proses laminasi vacuum bagging dengan variasi jumlah lapisan 6, 8, dan 10 serta orientasi serat 0°/90° dan 45°/45°. Pengujian mekanik dilakukan melalui uji tarik dan uji impak untuk menentukan kekuatan tarik dan energi impak komposit, yang selanjutnya dianalisis untuk mengevaluasi pengaruh parameter laminasi terhadap karakteristik mekanik material.
Hasil penelitian menunjukkan bahwa peningkatan jumlah lapisan meningkatkan kekuatan tarik dan energi impak. Kekuatan tarik tertinggi diperoleh pada komposit sepuluh lapis dengan orientasi serat 0°/90° sebesar 416,186 MPa, sedangkan energi impak tertinggi diperoleh pada komposit sepuluh lapis dengan orientasi serat 45°/45° sebesar 19,07 Joule.

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Carbon fibre-epoxy composites are widely used in lightweight structural applications due to their high strength-to• weight ratio. This study analyzes the effect of varying the number of laminate layers and fibre orientations on the mechanical properties of carbon fibre-epoxy composites fabricated using the vacuum bagging method.
Specimens were produced through the vacuum bagging lamination process with variations of 6, 8, and 10 layers and fibre orientations of 0°190° and 45°145°. Mechanical testing was conducted using tensile and impact tests to determine the tensile strength and impact energy of the composites. The results were then analyzed to evaluate the influence of lamination parameters on the mechanical characteristics of the material.
The results showed that increasing the number of layers enhanced both tensile strength and impact energy. The highest tensile strength was achieved by the ten-layer composite with a 0°190° fibre orientation, reaching 416. 186 MPa, while the highest
impact energy was observed in the ten-layer composite with a 45°145° fibre orientation, reaching 19.07 Joules.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: komposit, serat karbon, vacuum bagging, kekuatan tarik, impact charpy, laminasi, composite, carbon fibre, vacuum bagging, tensile strength, charpy impact, lamination
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: 08. Fakultas Teknik > Teknik Mesin
Depositing User: Tarysa Rimadhani Hermawati
Date Deposited: 26 Jan 2026 03:59
Last Modified: 26 Jan 2026 03:59
URI: https://repository.um-surabaya.ac.id/id/eprint/10927

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