Noorsyaif, Muhamad Rafli Ali (2022) Analisis Pengaruh Young’s Modulus Dan Viskoelastisitas Adhesive Terhadap Distribusi Tegangan Dan Serapan Energi Hybrid Joint: Rivet Bonded Yang Dikenakan Beban Impact Tensile Menggunakan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sambungan adhesive, telah digunakan di banyak struktur ringan seperti industri penerbangan, industri otomotif dan sebagainya. Dalam sambungan, Single-lap joint (SLJ) paling umum digunakan, karena geometrinya sederhana dan efisiensinya tinggi. Meskipun demikian single-lap joint, memiliki konsentrasi tegangan yang tinggi pada ujung-ujungnya sehingga mengurangi kekuatan sambungan. Hybrid joint: rivet-bonding adalah gabungan dari sambungan adhesive dan rivet. Hybrid joint: rivet-bonding digunakan untuk menghasilkan kekuatan sambungan yang tinggi, lebih ringan dan lebih tahan terhadap pengaruh lingkungan.
Penelitian ini mengamati nilai serapan energi dan distribusi tegangan yang terjadi pada sambungan hybrid joint: rivet bonded terhadap variasi material adhesive berdasarkan Young’s Modulus dan properties viskoelastisnya. Geometri spesimen dan metode uji sambungan mengacu pada penelitian yang pernah dilakukan oleh Izumi Higuchi pada tahun 2002. Penelitian dilakukan dengan metode elemen hingga, dengan menggunakan software ANSYS Explicit Dynamics. Simulasi dilakukan pada spesimen hybrid joint: rivet bonded dengan variasi material adhesive berdasarkan Young’s modulus dan properties viskoelastisnya, kemudian membandingkan serapan energi dan distribusi tegangannya dengan sambungan rivet joint dan adhesive joint. Untuk mengetahui pengaruh rivet lebih lanjut, dilakukan variasi tambahan dengan 2 rivet konfigurasi menyamping dan searah sambungan. Energi yang diberikan pada pengujian hybrid joint: rivet bonded dengan beban impact tensile yaitu sebesar 0.09 J.
Hasil yang diperoleh menunjukkan bahwa hybrid joint: rivet bonded dengan material adhesive UF-2 merupakan sambungan yang paling baik dibandingkan dengan hybrid joint dengan material adhesive lainnya, karena memiliki shear dan peel stress terendah dan serapan energi paling tinggi. Dalam hasil pengujian, ditemukan bahwa rivet pada hybrid joint belum berpengaruh terhadap distribusi tegangan adhesive, hal itu terjadi karena dalam pengujian, adhesive masih dalam batas elastis, dan rivet baru menerima beban setelah adhesive mengalami kegagalan. Hasil pengujian hybrid joint dengan 2 rivet, dengan konfigurasi searah sambungan lebih baik dibandingkan konfigurasi menyamping, karena peel dan shear stress adhesive yang lebih kecil.
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Adhesive joints, have been used in many light structures such as the aviation industry, the automotive industry and so on. In joints, the Single-lap joint (SLJ) is most commonly used, due to its simple geometry and high efficiency. However, single-lap joints, have a high concentration of stress at the ends, thereby reducing the strength of the joint. Hybrid joint: rivet-bonding is a combination of adhesive and rivet joints. Hybrid joint: rivet-bonding is used to produce a high strength joint, which is lighter and more resistant to environmental influences.
This study observes the value of energy absorption and stress distribution that occurs at the hybrid joint: rivet bonded connection to variations in adhesive material based on Young's Modulus and its viscoelastic properties. The geometry of the specimen and the connection test method refer to the research conducted by Izumi Higuchi in 2002. The research was carried out using the finite element method, using ANSYS Explicit Dynamics software. Simulations were carried out on hybrid joint specimens: bonded rivet with variations of adhesive material based on Young's modulus and its viscoelastic properties, then compared the energy absorption and stress distribution with the rivet joint and adhesive joint. To determine the effect of the rivet further, additional variations were carried out with 2 rivets configuration sideways and in the direction of the connection. The energy is given to the hybrid joint: rivet bonded with an impact tensile load of 0.09 J.
The results obtained indicate that the hybrid joint: rivet bonded with UF-2 adhesive material is the best joint compared to hybrid joints with other adhesive materials, because it has the lowest shear and peel stresses and the highest energy absorption. In the test results, it was found that the rivet on the hybrid joint did not affect the adhesive stress distribution, this happened because, in the test, the adhesive was still within the elastic limit, and the rivet only received a load after the adhesive failed. In the hybrid joint test result with 2 rivets, the configuration in the direction of the joint is better than the sided configuration because the peel and shear stress adhesive is smaller.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Kata kunci : Hybrid joint: rivet bonded, Single-lap joint, Impact tensile, rivet, Metode Elemen Hingga, Young’s Modulus dan properties viskoelastisitas adhesive, shear stress, peel stress, serapan energi. ============================================================ Keywords: Hybrid joint: rivet bonded, Single-lap joint, Impact tensile, rivet, Finite element method, Young’s Modulus and properties viscoelasticity of adhesive, shear stress, peel stress, energy absorption. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Muhamad Rafli Ali Noorsyaif |
| Date Deposited: | 16 Feb 2022 06:51 |
| Last Modified: | 01 Nov 2022 03:44 |
| URI: | http://repository.its.ac.id/id/eprint/94047 |
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