Analisis Pengaruh Beban Impact terhadap Dinding Bangunan Atas Kapal Berbahan Sandwich dengan Metode Elemen Hingga

Satira, Alya Rahmah (2025) Analisis Pengaruh Beban Impact terhadap Dinding Bangunan Atas Kapal Berbahan Sandwich dengan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Struktur sandwich panel merupakan salah satu inovasi material yang diterapkan pada struktur kapal karena dinilai mampu memberikan efisiensi struktural tinggi dengan massa yang ringan. Penelitian ini bertujuan untuk menganalisis kekuatan dan respons sandwich panel terhadap beban impact pada struktur dinding bangunan atas kapal, serta menentukan konfigurasi desain optimal berdasarkan kapasitas penyerapan energi. Penelitian ini dilakukan dengan metode elemen hingga menggunakan pendekatan material Johnson-Cook yang dimodelkan pada perangkat lunak ANSYS Explicit Dynamics. Model struktur yang dianalisis berupa dinding bangunan atas kapal berbahan aluminium 6082-T6 dengan berbagai konfigurasi sandwich panel: V-core, I-core, X-core, dan Y-core. Setiap konfigurasi terdiri atas tiga variasi dimensi untuk mengevaluasi pengaruh ketebalan faceplate dan core terhadap parameter crashworthiness seperti EA, SEA, MCF, dan CFE. Hasil menunjukkan bahwa konfigurasi inti dan ketebalan faceplate sangat mempengaruhi performa impact, dengan nilai Peak Force tertinggi dicapai oleh V-Core 3 (Model Tembak 1) sebesar 242 kN. Pola deformasi bertahap teridentifikasi, dengan kontribusi penyerapan energi dominan bergantung pada lokasi tumbukan, core dominan di Model Tembak 1 dan faceplate atas di Model Tembak 2. V-Core 2 menunjukkan efektivitas perlambatan proyektil terbaik, sementara desain optimal ditunjukkan oleh V-Core 3 (Model Tembak 2) dengan SEA tertinggi ~0,575 kJ/kg dan X-Core 3 (Model Tembak 1) dengan EA tertinggi ~58 kJ dan SEA ~0,457 kJ/kg.
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Sandwich panel structures are a material innovation widely applied in ship construction due to their high structural efficiency and lightweight properties. This study aims to analyze the strength and impact load of sandwich panels used in the wall structure of ship superstructures, as well as to determine the most optimal design configuration based on energy absorption capacity. The research was conducted using the finite element method with the Johnson-Cook material model implemented in ANSYS Explicit Dynamics. The structural model analyzed is a ship superstructure wall made of aluminum 6082-T6 with four sandwich panel configurations: V-core, I-core, X-core, and Y-core. Each configuration includes three dimensional variations to evaluate the influence of faceplate and core thickness on crashworthiness parameters such as Energy Absorption (EA), Specific Energy Absorption (SEA), Mean Crushing Force (MCF), and Crash Force Efficiency (CFE). The simulation results indicate that core configuration and faceplate thickness significantly influence impact performance, with the highest Peak Force recorded in V-Core 3 (Impact Model 1) at 242 kN. A progressive deformation mechanism was observed, with dominant energy absorption contributions varying by impact location, core elements in Impact Model 1 and top faceplate in Impact Model 2. V-Core 2 demonstrated the best performance in decelerating the projectile, while the most favorable designs were identified as V-Core 3 (Impact Model 2) with the highest SEA of approximately 0.575 kJ/kg and X-Core 3 (Impact Model 1) with the highest EA of around 58 kJ and SEA of approximately 0.457 kJ/kg.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	sandwich panel, beban impact, crashworthiness, metode elemen hingga, sandwich panel, impact load, crashworthiness, finite element method
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Alya Rahmah Satira
Date Deposited:	05 Aug 2025 11:37
Last Modified:	05 Aug 2025 11:37
URI:	http://repository.its.ac.id/id/eprint/127529

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