Studi Buckling Pada Elemen Struktur Kapal Berbahan Sandwich Panel

Arianto, Pratama Yuli (2019) Studi Buckling Pada Elemen Struktur Kapal Berbahan Sandwich Panel. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan kemajuan inovasi material membuat para peneliti berlomba-lomba untuk mendapatkan material yang optimal baik dari segi berat maupun kekuatan. Telah dilakukan beberapa penelitian mengenai hal tersebut, dimana salah satunya terwujud dalam sebuah sandwich material. Sandwich material merupakan material komposit yang terdiri dari face dan core yang kini telah berkembang penggunaannya baik pada industri penerbangan, konstruksi bangunan, jembatan, maupun pada industri perkapalan. Studi pada sandwich material ketika mendapat beban tekan yang mengakibatkan bending maupun buckling dibutuhkan untuk mengetahui perilaku dari sebuah material. Pada penelitian ini, dipilih konstruksi double bottom pada kapal karena merupakan konstruksi yang rawan terkena beban tekan baik dari muatan mupun dari luar kapal.
Pada tesis ini, digunakan 6 variasi sandwich material yang terdiri dari 3 variasi core material (10%talk, 20%talk, dan 30%talk), dan 2 variasi face material (tidak adanya kekasaran dan adanya kekasaran akibat sandblasting). Metode pengujian material uji dilakukan secara eksperimen dan numerik. Hasil penelitian menunjukkan bahwa keseluruhan variasi mempengaruhi kekuatan dari material. Ketika dilakukan uji bending maupun buckling, kekuatan sandwich material bertambah ketika dilakukan penambahan persentase bubuk talk dari variasi 10% ke 30%. Pada variasi face material, pemberian kekasaran pada material juga menambah kekuatan material sampai 8% lebih kuat dalam menerima beban tekan. Setelah dilakukan validasi dengan metode numerik, perbedaan hasil beban yang diterima antara metode eksperimen dan numerik kurang dari 4%.
Ketika sandwich panel diterapkan pada konstruksi double bottom, didapatkan bahwa berat dari konstruksi bertambah seiring bertambahnya komposisi variasi talk dari 10% ke 30%. Variasi sandwich panel dengan komposisi talk 10% memiliki selisih 9,88% lebih ringan daripada konstruksi konvensional. Rasio paling optimum dari sandwich material berdasarkan kekuatan terhadap berat adalah sebesar 0,38 dimana pada komposisi talk 30%.
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The development of material innovation has made researchers compete to get optimal material both in terms of weight and strength. Several studies have been conducted on this subject, one of which was manifested in a material sandwich. Sandwich material is a composite material consisting of face and core which has now developed its use in the aviation industry, building construction, bridges, and in the shipping industry. Studies on sandwich materials subjected to compressive loads resulting in bending and buckling are needed to determine the behavior of a material. In this study, a double bottom construction was chosen on the ship because it is a construction prone to compressive loads from both the cargo and from outside the ship.
In this thesis, 6 variations of sandwich material are used which consist of 3 core material variations (10% talc, 20% talc, and 30% talc), and 2 face material variations (non-roughness and roughness due to sandblasting). Test methods for test materials are carried out experimentally and numerically. The results of the study indicate that the overall variation affects the strength of the material. When bending and buckling tests are conducted, the strength of the material sandwich increases when the percentage of talc powder is added from a variation of 10% to 30%. On face material variation, giving roughness to the material adds material strength to be 8% stronger in receiving compressive loads. After validation with the numerical method, the difference in the results of the load received between the experimental and numerical methods is less than 4%.
When a sandwich panel is applied to a double bottom construction, it results that the weight of the construction increases while increasing variation of the talk composition from 10% to 30%. Sandwich panels with 10% talk composition have a difference of 9.88% lighter conventional construction. The most optimum ratio of a sandwich material based on strength to weight is 0.38 when the talk composition is 30%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Bending, Buckling, Ship Construction, Material, Sandwich Panel
Subjects:	V Naval Science > V Naval Science (General) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM297 Ships Designs and drawings
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36101-(S2) Master Thesis
Depositing User:	Pratama Yuli Arianto
Date Deposited:	23 Jul 2026 04:43
Last Modified:	23 Jul 2026 04:43
URI:	http://repository.its.ac.id/id/eprint/67242

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