Pratama, Arighi Dhika (2022) Analisis Pengaruh Orientasi Sudut Dan Ketebalan Terhadap Kekuatan Prostetik Running Blade Komposit Kenaf/Epoksi Dengan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dewasa ini, perkembangan material bergerak kearah komposit alam karena dianggap memiliki banyak kelebihan dibandingkan dengan material sintetis dan logam. Kelebihannya ialah komposit alam merupakan material yang bisa diperbarui, melimpah, ringan dan dapat terurai secara alami. Komposit alam sendiri sudah mulai dikembangkan dan diaplikasikan pada industri manufaktur khususnya konstruksi dan otomotif. Pertumbuhan kebutuhan prostetik yang meningkat menjadi alasan para insinyur dan peneliti mulai mengembangkan teknologi prostetik. Salah satu jenis prostetik alat gerak bagian bawah adalah prostetik tipe running blade. Running blade merupakan prostetik alat gerak bagian bawah yang dirancang khusus untuk kebutuhan olahraga. Running blade biasanya dimanufaktur dengan menggunakan material komposit sintetis seperti komposit carbon atau fiberglass Dalam penelitian ini, dilakukan analisis pengaruh orientasi sudut dan ketebalan terhadap kekuatan prostetik running blade komposit kenaf/ epoksi dengan metode elemen hingga. Penelitian ini diawali dengan melakukan studi literatur, penentuan variasi dan simulasi pada perangkat lunak ANSYS Workbench. Pengujian yang dilakukan mengacu kepada standar ISO 10328 (2016): Prosthetics – Structural Testing of Lower-limb Prostheses – Requirements and Test Methods. Variasi orientasi sudut serat ada 6, yaitu: [0/0], [90/90], [0/90], [0/90]s, [±45], [±45]s. Kemudian silanjutkan dengan memvariasikan ketebalan pada penelitian ini yaitu 2 cm, 3 cm, dan 4 cm. Pada penelitian ini didapatkan bahwa orientasi sudut paling optimal untuk running blade ada pada orientasi sudut [90/90]. Hal ini disimpulkan karena orientasi sudut [90/90] memiliki nilai Tsai-Wu safety factor tertinggi, nilai total deformation tertinggi, nilai stiffness tertinggi, dan nilai equivalent stress terendah kedua setelah orientasi sudut [0/90]. Sementara untuk pengaruh ketebalan terhadap kekuatan running blade yaitu adanya peningkatan untuk nilai Tsai-Wu safety factor dan penurunan nilai equivalent stress. Namun dari segi kekakuan juga meningkat dilihat dari menurunnya nilai total deformation dan meningkatnya nilai stiffness dari running blade. Untuk dapat menyamai kekuatan running blade dari epoxy carbon woven (230 GPa) wet, running blade dari kenaf/ epoksi perlu dibuat 2,22 kali lebih tebal. Namun memiliki keterbatasan yaitu nilai kekakuan yang jauh lebih besar serta massa yang dihasilkan 1,86 kali lebih berat.
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Nowadays, the development of materials moves towards natural composites because it is considered to have many advantages compared to synthetic materials and metals. The advantage is that natural composites are materials that are renewable, abundant, lightweight and biodegradable. Natural composites themselves have begun to be developed and applied to the manufacturing industry, especially construction and automotive. The growing need for prosthetics is the reason engineers and scientists have begun to accelerate the development of prosthetic technologies. One type of lower-limb prostheses is a running blade type prosthetic. Running blade is a prosthetic of the lower-limb designed specifically for sports needs. Running blades are usually manufactured using synthetic composite materials such as carbon and fiberglass composites. In this study, an analysis of the effect of angle orientation and thickness on the strength of the kenaf / epoxy composite running blade using finite element method was carried out. This research began with conducting literature studies, determining variations and simulations on the ANSYS Workbench software. The tests carried out refer to the ISO 10328 (2016) standard: Prosthetics – Structural Testing of Lower-limb Prostheses – Requirements and Test Methods. The variations of the fiber angle orientation are 6, namely: [0/0], [90/90], [0/90], [0/90]s, [±45], [±45]s. Then continued by varying the thickness in this study, namely 2 cm, 3 cm, and 4 cm In this study, it was found that the most optimal angle orientation for running blades was at the [90/90] angle orientation. This is concluded because the angular orientation [90/90] angle orientation has the highest Tsai-Wu safety factor value, the highest total deformation value, the highest stiffness value, and the second lowest equivalent stress value after [0/90] angle orientation. Meanwhile, the effect of thickness on the strength of the running blade is an increase in the value of the Tsai-Wu safety factor and a decrease in the equivalent stress value. However, in terms of stiffness, it also increases in terms of the decrease in the total deformation value and the increase in the stiffness value of the running blade. To be able to match the strength of the running blade from epoxy carbon woven (230 GPa) wet, the running blade from kenaf / epoxy needs to be made 2.22 times thicker. However, the running blade does have limitation, namely a much greater stiffness value and the resulting mass is 1.86 times heavier.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 620.118 Pra a-1 2022 |
| Uncontrolled Keywords: | Kenaf, Komposit alam, Prostetik, Running blade, ISO 10328 (2016), Kenaf fibre, Natural composite, Prosthetics, Running blade |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 21 Feb 2025 06:52 |
| Last Modified: | 21 Feb 2025 06:52 |
| URI: | http://repository.its.ac.id/id/eprint/118835 |
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