Sari, Nindya (2018) Analisa Pengaruh Sudut Karbon Twill Dan Fiber E-Glass Dengan Core Polyurethane Pada Komposit Sandwich Menggunakan Metode Bagging Vacuum Dan Pengujian Three Point Bending. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Nogogeni adalah salah satu jenis kendaraan yang dirancang untuk kendaraan hemat energi, ramah lingkungan, efisiensi tinggi yang akan menghadapi perlombaan nasional dan internasional. Untuk mencapai rancangan tersebut maka tim harus mereduksi berat pada kendaraan, yaitu denga menggunakan bahan bodi mobil yang lebih ringan untuk didapatkan nilai efisiensi yang tinggi.
Penelitian diawali dengan proses komposit sandwich menggunakan proses hand lay up. Setelah komposit sandwich tersusun lalu tata perlengkapan untuk bagging vacuum, rangkai komposit sandwich dengan pompa vacuum dan nyalakan pompa, tunggu hingga ± 4 jam. Hasil cetakan dipotong menggunakan gerinda tangan dengan variasi sudut 0°, 30°, 45° dan mengacu pada ukuran untuk spesimen bending ASTM C393. Setelah pemotongan selesai dilakukan pengujian bending dengan mengguakan metode three point bending. Foto makro pada setiap spesiemen yang telah diuji bending untuk mengetahui jenis kegagalan pada komposit.
Dengan menggunakan variasi arah sudut serat didapat hasil bahwa nilai kekuatan bending mengalami ketidakstabilan, untuk kekuatan bending maksimalnya pada arah sudut serat 45° sebesar 6,907 Mpa, sedangkan untuk kekakuan bending maksimalnya pada arah sudut serat 0° sebesar 53,536 × 10³ Nmm². Model kegagalan komposit sandwich serat karbon fiber dengan core polyurethane akibat pengujian bending berupa indentation, facesheet debonding, matrix cracking.
==================================================================================================================Nogogeni is a one of the types of vehicles which are designed to join the race vehicle energy saving, environment friendly, high efficiency which will face national and international competition. To achieve the design teams had to reduce the weight of the vehicle, with the use of car material body obtained high efficiency values.
Research begins with the process of composite sandwich used the process of hand lay up. After the composite sandwich are assembled and then vacuum bagging equipment, sets composite sandwich with a vacuum pump and turn on the pump, wait up to ± 4 hours. The results of the mold is cut using a hand grinding with the variation of angle of 0 °, 30 °, 45 ° and refers to the size of the specimens to ASTM C393 bending. After cutting was completed, after that testing bending with three point bending method of his own. Macro photos on each specimen has been tested to find out which type of bending failures in composite.
Using the variations of angular direction of fibre obtained result that value the power of bending experience instability, for the strength of bending in the direction of the maximum angle of 45 ° fibre 6.907 Mpa, while for maximum bending stiffness in direction angle fiber 0 ° of 53.536 × 10 ³ Nmm ². composite sandwich failure Model carbon fiber fiber polyurethane core test result with a bending form of indentation, facesheet debonding, matrix cracking.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSMI 624.1 Sar a |
| Uncontrolled Keywords: | Komposit Sandwich, Bagging Vacuum, Uji Bending, Foto Makro. keywords : Komposit Sandwich, Carbon Fiber, Core Polyurethan, Bending Testers. |
| Subjects: | T Technology > TS Manufactures > TS170 New products. Product Development T Technology > TS Manufactures > TS171 Product design |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Nindya Sari |
| Date Deposited: | 09 Oct 2020 03:24 |
| Last Modified: | 09 Oct 2020 03:24 |
| URI: | http://repository.its.ac.id/id/eprint/59306 |
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