ANALISA FATIGUE LIFE TABUNG GAS 3 KG AKIBAT BEBAN IMPECT DENGAN HINGGA

Noval, M. Royhan (2026) ANALISA FATIGUE LIFE TABUNG GAS 3 KG AKIBAT BEBAN IMPECT DENGAN HINGGA. S-1 thesis, 021008 Universitas Tridinanti.

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Abstract

The 3 kg LPG cylinder is a pressure vessel that is susceptible to impact loads during distribution, storage, and use, which may reduce the material's fatigue life. This study aims to analyze the stress distribution and fatigue life of a 3 kg LPG cylinder subjected to impact loading using the Finite Element Method (FEM). The cylinder material used is JIS G3116 SG295 low-carbon steel, and the drop test simulation was performed using ANSYS software. The analysis focused on Von Mises stress distribution, total deformation, equivalent strain, and fatigue life prediction based on the Coffin–Manson–Basquin method. The simulation results showed that the maximum Von Mises stress reached approximately 500 MPa and was concentrated at the bottom of the cylinder, which was the first area to come into contact during impact. The maximum total deformation was 0.06 m, while the maximum equivalent strain was 0.014. Based on the fatigue analysis, the estimated fatigue life of the cylinder was approximately 193 cycles under the applied loading conditions. The results indicate that impact loading generates high stress concentrations, thereby accelerating the reduction of the material's fatigue life. This study is expected to serve as a reference for evaluating the safety and structural durability of 3 kg LPG cylinders subjected to impact loading. Keywords: 3 kg LPG cylinder, fatigue life, impact loading, Finite Element Method, Von Mises stress, Coffin–Manson–Basquin.

Item Type: Thesis (S-1)
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik > S1 Teknik Mesin
Depositing User: Tn M. ROYHAN NOVAL
Date Deposited: 12 Aug 2026 01:40
Last Modified: 12 Aug 2026 01:40
URI: http://repository.univ-tridinanti.ac.id/id/eprint/11194

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