Analisis Pengaruh Ukuran Sel dan Ketebalan Struktur Honeycomb terhadap Sifat Mekanik dan Fisis Komposit Sandwich FRP untuk Aplikasi Back-End Plate Fuelcell

Aziz, Indrawan (2024) Analisis Pengaruh Ukuran Sel dan Ketebalan Struktur Honeycomb terhadap Sifat Mekanik dan Fisis Komposit Sandwich FRP untuk Aplikasi Back-End Plate Fuelcell. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proton exchange membrane fuel cells (PEMFCs) sebagai pembangkit listrik menarik perhatian karena efisiensi tinggi dan emisi mendekati nol. Endplate merupakan komponen penting yang memerlukan material dengan kepadatan rendah, kekakuan tinggi, tahan korosi, resistansi termal tinggi, dan isolasi listrik yang baik. Penggunaan Fiber Reinforced Polymer (FRP) dalam struktur komposit sandwich dapat meningkatkan performa, terutama dengan struktur inti honeycomb yang unggul dalam tegangan, regangan elastis, dan bobot. Namun, pengaruh ukuran sel dan ketebalan inti honeycomb pada sifat mekanik dan fisis FRP belum banyak diteliti. Penelitian ini menganalisis pengaruh tersebut menggunakan metode studi literatur, diskusi, dan eksperimen dengan sintesis endplate fuel cell komposit sandwich menggunakan mesin 3D printer dan resin epoxy. Pengujian tarik, bending, SEM, dan ketahanan temperatur dilakukan untuk menilai sifat mekanik dan fisis. Hasil menunjukkan bahwa ukuran sel yang lebih besar meningkatkan nilai flexural stress dan tensile strength, dengan nilai tertinggi pada sampel SW40-5 (40,82 MPa dan 104,79 MPa). Sebaliknya, ketebalan inti yang lebih besar menurunkan sifat mekanik, dengan nilai terendah pada sampel SW20-10 (3,64 MPa dan 6,87 MPa).
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Proton exchange membrane fuel cells (PEMFCs) as power plants are attracting attention due to their high efficiency and near-zero emissions. The endplate is an important component that requires a material with low density, high stiffness, corrosion resistance, high thermal resistance, and good electrical insulation. The use of Fiber Reinforced Polymer (FRP) in sandwich composite structures can improve performance, especially with honeycomb core structures that excel in stress, elastic strain, and weight. However, the effect of cell size and honeycomb core thickness on the mechanical and physical properties of FRP has not been widely studied. This research analyzes these effects using the methods of literature study, discussion, and experimentation with the synthesis of sandwich composite fuel cell endplates using a 3D printer and epoxy resin. Tensile, bending, SEM, and temperature resistance tests were conducted to assess the mechanical and physical properties. Results showed that larger cell size increased the flexural stress and tensile strength values, with the highest values in sample SW40-5 (40.82 MPa and 104.79 MPa). In contrast, larger core thickness decreased the mechanical properties, with the lowest values in sample SW20-10 (3.64 MPa and 6.87 MPa).

Item Type:	Thesis (Other)
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Indrawan Aziz
Date Deposited:	02 Aug 2024 04:23
Last Modified:	02 Aug 2024 04:23
URI:	http://repository.its.ac.id/id/eprint/111699

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