Panangian, Ervan (2020) Analisis Kekuatan Pelat Sandwich pada Geladak dan Sisi dengan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Syarat utama sebuah material agar dapat dianggap layak untuk menjadi bahan konstruksi kapal adalah kuat dan ringan sehingga kapal dapat berlayar dengan baik dan mampu mengangkut payload yang optimal. Beberapa literatur telah menunjukkan bahwa penerapan pelat sandwich mampu mengurangi berat kapal dengan estimasi kasar sektar 5-15%. Pelat sandwich ini pun sudah digunakan secara komersial pada dunia industri perkapalan dan sudah distandardisasi oleh beberapa kelas IACS seperti Llyod Register (LR), Bureau Veritas (BV), dan Det Norske Veritas (DNV). Pelat sandwich yang paling umum digunakan adalah pelat sandwich dengan core polyurethane elastomer. Konfigurasi ini telah dipatenkan dengan nama sandwich plate system (SPS). Namun, bahan tersebut sulit dicari khususnya di dalam negeri. Polyurethane elastomer yang umum dijumpai dalam negeri adalah polyurethane elastomer tipe casting. Polyurethane jenis ini relatif murah dan mudah diproduksi di dalam negeri. Pelat sandwich dengan material tersebut akan diteliti secara numerik menggunakan metode elemen hingga. Tujuan dari penelitian ini adalah untuk mengetahui bahwa penerapan pelat sandwich pada struktur geladak dan sisi memenuhi tegangan izin, dimana penerapan pelat sandwich tersebut dapat berpotensi mengurangi berat konstruksi. Penelitian dilakukan dengan membandingkan konfigurasi baja konvensional dengan empat jenis konfigurasi sandwich dengan variasi jarak penegar. Hasil penelitian menunjukkan bahwa seluruh variasi memenuhi tegangan izin dan diperoleh nilai pengurangan berat lokal pada struktur geladak yaitu berkisar antara 16-20% sedangkan untuk struktur sisi berkisar antara 4-8%.
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The fundamental requirement for a material to be considered feasible to be used in a ship production is strong and lightweight so that the ship can operate well with optimal payload. Some literature has shown that the application of sandwich plates can reduce the weight of the ship with a rough estimation of about 5-15%. The configuration of sandwich panel has also been used commercially in the shipping industry and has been standardized by some of IACS members such as Llyod Register (LR), Bureau Veritas (BV), and Det Norske Veritas (DNV). The most commonly used configuration of sandwich is sandwich panel with polyurethane elastomer as the core material. This configuration has been patented by name Sandwich Plate System (SPS). However, these materials are difficult to find, especially in Indonesia. Polyurethane elastomers that are commonly found domestically are the casting type of polyurethane elastomers. This type of polyurethane is relatively inexpensive and is easily produced domestically. Sandwich plates with these materials will be examined numerically using the finite element method. The purpose of this study is to determine whether the application of sandwich plating on the deck and side structure meets the permissible yield stress, where this application could potentially reduce the weight of the structures. The study was conducted by comparing conventional steel configurations with four types of sandwich configurations with different stiffener distance variations. The results showed that all variation meet the permissible yield stress and the local weight reduction in the deck structure ranged from 16-20% while for side structure ranged from 4-8%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | finite element method, sandwich panel, ship construction, stress, yield stress, konstruksi kapal, metode elemen hingga, pelat sandwich, tegangan, tegangan izin. |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture) |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
| Depositing User: | Ervan Panangian |
| Date Deposited: | 31 Aug 2020 03:03 |
| Last Modified: | 05 Jul 2023 01:42 |
| URI: | http://repository.its.ac.id/id/eprint/78728 |
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