Tristandi, Brian Reksa (2020) Analisa Pengaruh Longitudinal Denting Pada Tubular Member. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Salah satu jenis cacat yang sering terjadi pada tubular member adalah longitudinal dent. Terbentuknya longitudinal dent dapat menurunkan kapasitas kekuatan Ultimate dari tubular member tersebut. Perubahan dimensi kelengkungan pada area tubular member yang mengalami longitudinal denting menimbulkan ketidakseragaman dari luas penampang silinder menyebabkan gaya yang bekerja diberikan pada suatu daerah yang memiliki luas penampang kecil sehingga dapat menimbulkan konsentrasi tegangan yang dapat berakibat kerusakan. Untuk itu diperlukan penelitian yang berupa simulasi pada tubular member yang mengalami longitudinal denting menggunakan Metode Elemen Hingga (FEM). Dari hasil penelitian ini diharapkan dapat menghasilkan perbandingan kapasitas kekuatan Ultimate dari tubular bracing sebelum dan sesudah mengalami longitudinal dent serta pengaruh longitudinal dent terhadap penurunan kapasitas kekuatan Ultimate dari tubular member tersebut. Dari hasil penelitian didapatkan penurunan penurunan kapasitas kekuatan Ultimate.pada tiap kedalaman adalah 2.24% untuk kedalaman 5.08 mm, 6.11% untuk kedalaman 10.16 mm, 16.08% untuk kedalaman 15.24 mm, serta 22.67% untuk kedalaman 20.32 mm. sedangkan untuk lebar tingkat penurunannya adalah 4.26% untuk lebar 51.188 mm, 7.01% untuk lebar 79.743 mm, 11% untuk lebar 101.19 mm, serta 22.67 % untuk lebar 128.016 mm
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One type of defect that often occurs in tubular members is longitudinal dent. The formation of a longitudinal dent can reduce the Ultimate strength capacity of the tubular member. Changes in the dimensions of the curvature in the tubular area of members experiencing longitudinal clinks cause a non uniformity in the cross-sectional area of the cylinder causing the force applied to an area that has a small cross-sectional area so that it can cause stress concentrations that can result in damage. For this reason research is needed in the form of simulations on tubular members who experience longitudinal clink using the Finite Element Method (FEM). The results of this study are expected to produce a comparison of Ultimate strength capacity of tubular bracing before and after experiencing longitudinal dent and the effect of longitudinal dent on decreasing the Ultimate strength capacity of the tubular member. From the results of the study, it was found that the decrease in the strength strength of the Ultimate.on each depth is 2.24% for depths of 5.08 mm, 6.11% for depths of 10.16 mm, 16.08% for depths of 15.24 mm, and 22.67% for depths of 20.32 mm. while the width of the rate of decline is 4.26% for width 51.188 mm, 7.01% for width 79.743 mm, 11% for width 101.19 mm, and 22.67% for width 128.016 mm
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKe 627.98 Tri a-1 2019 |
| Uncontrolled Keywords: | tubular member, longitudinal dent, pushover |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Tristandi Brian Reksa |
| Date Deposited: | 04 Jan 2023 03:23 |
| Last Modified: | 04 Jan 2023 03:23 |
| URI: | http://repository.its.ac.id/id/eprint/73709 |
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