Fatigue Analysis of Polyethylene Fuel Tanks Used in Buses

ERDEM, AKAY and GOKAY, SIMITCIOGLU and H. BURAK, USTAOGLU and HALIT, S. TURKMEN and SEDAT, SUSLER and SENA, AYHUN and SERTER, ATAMER and VEDAT, Z. DOGAN and Y. EMRE, ERGINSOY and ZAHIT, MECITOGLU (2015) Fatigue Analysis of Polyethylene Fuel Tanks Used in Buses. In: Fourth International Conference On Advances in Civil and Structural Engineering - CSE 2015, 26-27 September, 2015, Kuala Lumpur, Malaysia.

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Abstract

In this paper, the fatigue analysis part of a project which aims to develop a computer aided methodology for developing/designing of the polyethylene fuel tanks is presented. The fatigue performance of the polyethylene material based on the stress-life (S-N) approach is obtained by coupon tests. Dynamic “g forces”, which act on the fuel tanks as base excitations, are obtained from the specific bad road runway experiments by the Mercedes-Benz Turk (MBT) R&D Center. In the finite element simulation, dynamic stresses are obtained for different fullness ratios of the tank by using PERMAS V15. Fluid-structure interaction problem is also considered, fluid (fuel) is modeled with acoustic elements, and structure (tank) is modeled with shell elements. Fatigue life prediction of the fuel tank is conducted by using the FEMFAT (Finite Element Fatigue Analysis) program. After evaluating results, some geometry optimization is performed. Finally, all fatigue analysis results are compared with the hydro-pulse test results for validation.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: polyethylene, finite element method, fatigue
Depositing User: Mr. John Steve
Date Deposited: 26 Apr 2019 04:42
Last Modified: 26 Apr 2019 04:42
URI: http://publications.theired.org/id/eprint/1518

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