Vol.21, No.3, 2021, pp. 273–278
UDC:

FINITE ELEMENT ANALYSIS OF SPHERICAL STORAGE TANK STRESS STATE

Aleksandar M. Milovanović1*, Igor Martić2, Ljiljana Trumbulović1, Ljubica Diković1, Branko Drndarević3

1) Western Serbia Academy of Applied Studies, Užice, SERBIA

email: aleksandar.milovanovic@vpts.edu.rs

2) University of Belgrade, Innovation Centre of the Faculty of Mechanical Engineering, Belgrade, SERBIA

3) Rad-Raso d.o.o., Užice, SERBIA

 

Abstract

In this paper, a spherical storage tank for the storage of liquefied petroleum gas is analysed. A design calculation of structural elements is performed according to valid standards and technical regulations. Seismic loads are determined. By using the finite element method, a structural analysis of the spherical storage tank is performed for the design case in which the storage tank is exposed to effects of: self-weight of sphere with supporting pillars; complete reinforcement; staircases and platforms; snow; hydrostatic pressure of the working fluid; design pressure; and horizontal seismic forces. The zones with maximum stress values are shown and the obtained results are analysed.

Keywords: finite element analysis (FEA), pressure vessel, spherical storage tank

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