Analisis Kekuatan Material Komposit Pada Tangki Type C Fully Pressurised LNG Menggunakan Finite Element Method

Al Razaq, Reza Muallif (2021) Analisis Kekuatan Material Komposit Pada Tangki Type C Fully Pressurised LNG Menggunakan Finite Element Method. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

The process of delivering LNG on ships is stored through the tank, where the LNG tank must have good material strength. The use of composite materials for internal support is associated with relatively low mechanical strength and a lifespan that has not been included. Thus, obtaining a proper material certificate, issued by a classification society for internal support, can be a problem. Use of composite tank material to add strength to the material. By doing Hydrostatic Pressure and thickness variations. The method is carried out using the finite element method with the help of software. The materials used are SA 240 Gr 304, SA 353, and Monel 400. The LNG tank has a volume of 5000 m3 with a tank diameter of 21.23 m. Materials get stress values at SA 240 with SA 353 321.73 MPa, SA 240 with Monel 400 322.14 MPa, and SA 353 and Monel 400 454.22 MPa. Material safety values in SA 240 Gr 304 with SA 353 2.56, SA 204 Gr 304 with Monel 400 4.66, and SA 353 with Monel 400 3.3. For hydrostatics, the value of mises stress is obtained at SA 240 with SA 353 321.73 MPa, SA 240 with Monel 400 322.14 MPa, and SA 353 and Monel 400 454.22 MPa. Analysis of thickness variations in tanks with SA 204 Gr 304 material with SA 353 and SA 204 Gr 304 with Monel 400 with a thickness of 28 mm, 30 mm, and 32 mm with stress values on materials SA 240 and SA 353 with a thickness of 28 mm 321, 73 MPa, 30 mm thick 319.99 MPa, and 32 mm thick 317.88 MPa. SA 240 and Monel 400 with a thickness of 28 mm 322.14 MPa, a thickness of 30 mm 317.31 MPa, and a thickness of 32 mm 316.55 MPa. SA 353 and Monel 400, at 28 mm thick 454.22 MPa, 30 mm thick 450.72 MPa, and 32 mm thick 440.72 MPa.

Item Type:	Thesis (Other)
Additional Information:	RSPe 623.824 5 Alr a-1
Uncontrolled Keywords:	LNG Tank, Composite Materials, Strength, Finite Element,
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD9999.C715-.C7154 Composite materials T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	16 May 2023 08:37
Last Modified:	16 May 2023 08:37
URI:	http://repository.its.ac.id/id/eprint/97930

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