Analisis Pengaruh Jumlah Gigi Dan Ketebalan Pisau Shredder Terhadap Gaya Maksimum, Tegangan, Total Deformasi Dan Faktor Keamanan Berdasarkan Discrete Element Method (DEM) Dan Finite Element Analysis (FEA)

Mulani, Dhaffa Putra (2026) Analisis Pengaruh Jumlah Gigi Dan Ketebalan Pisau Shredder Terhadap Gaya Maksimum, Tegangan, Total Deformasi Dan Faktor Keamanan Berdasarkan Discrete Element Method (DEM) Dan Finite Element Analysis (FEA). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengelolaan limbah Carbon Fiber Reinforced Polymer (CFRP) memerlukan proses penghancuran yang efektif untuk mendukung pemanfaatan kembali material. Salah satu faktor yang memengaruhi kinerja mesin penghancur adalah jumlah area pemotong dan ketebalan mata pisau, karena kedua parameter tersebut berpengaruh terhadap gaya pencacahan, kualitas hasil cacahan, serta kekuatan struktur mata pisau. Penelitian ini bertujuan untuk menganalisis pengaruh variasi jumlah area pemotong sebanyak 2, 4, 6, dan 8 area serta variasi ketebalan mata pisau sebesar 10 mm, 12 mm, dan 14 mm terhadap gaya pencacahan, distribusi ukuran hasil cacahan, dan kekuatan struktur mata pisau. Perancangan mata pisau dilakukan menggunakan perangkat lunak CAD, kemudian dianalisis melalui simulasi numerik. Simulasi Discrete Element Method (DEM) digunakan untuk memperoleh gaya kontak dan distribusi ukuran partikel hasil pencacahan limbah CFRP, sedangkan Finite Element Analysis (FEA) digunakan untuk mengevaluasi kekuatan struktur mata pisau berdasarkan gaya yang diperoleh dari simulasi DEM melalui parameter Equivalent Von Mises Stress, Total Deformation, dan Safety Factor. Hasil penelitian menunjukkan bahwa variasi mata pisau dengan 6 area pemotong dan ketebalan 14 mm (C3) merupakan desain terbaik, dengan nilai Equivalent Von Mises Stress terendah sebesar 134,76 MPa, Total Deformation terkecil sebesar 0,011064 mm, serta Safety Factor tertinggi sebesar 1,8552
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The management of Carbon Fiber Reinforced Polymer (CFRP) waste requires an effective size-reduction process to support material recycling and reuse. One of the key factors affecting the performance of a shredding machine is the number of cutting areas and the thickness of the cutting blades employed. This study aims to analyze the effect of varying the number of cutting areas (2, 4, 6, and 8 cutting areas) and blade thicknesses (10 mm, 12 mm, and 14 mm) on shredding force, particle size distribution, and blade structural strength. The blade geometries were designed using CAD software and evaluated through numerical simulations. The Discrete Element Method (DEM) was utilized to determine the contact force and particle size distribution of shredded CFRP waste, while Finite Element Analysis (FEA) was employed to evaluate Von Mises stress, total deformation, and safety factor based on the loading conditions obtained from the DEM simulations. The DEM results indicated that the maximum shredding force ranged from 1004.01 N to 1881.53 N, with a tendency to increase as blade thickness increased. An increase in the number of cutting areas produced a finer and more uniform particle size distribution. The configuration with 6 cutting areas and a blade thickness of 12 mm generated the most homogeneous particle size distribution, predominantly within the 4–6 mm size range. The FEA results showed that increasing both the number of cutting areas and blade thickness reduced the Von Mises stress and total deformation while improving the safety factor of the blade structure. Based on the overall evaluation of shredding performance and structural integrity, the blade design with 6 cutting areas and a thickness of 12 mm is recommended as the optimum configuration, as it provides a uniform particle size distribution, relatively low stress, minimal deformation, and a high safety factor..

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Limbah Serat Karbon, Mata Pisau Shredder, Discrete Element Method (DEM), Finite Element Analysis (FEA), Distribusi Ukuran Partikel, Carbon Fiber Waste, Shredder Blade, Discrete Element Method (DEM), Finite Element Analysis (FEA), Particle Size Distribution.
Subjects:	T Technology > TS Manufactures
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Dhaffa Putra Mulani
Date Deposited:	14 Jul 2026 07:10
Last Modified:	14 Jul 2026 07:10
URI:	http://repository.its.ac.id/id/eprint/134843

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