Strength and buckling of an untypical dished head of a cylindrical pressure vessel

The paper is devoted to an untypical dished head equivalent to a thin-walled shell of revolution. The goal of analysis is the elimination of the edge effect arising at the joint of the cylindrical shell and the dished head. The meridian of the head is a composite curve of a circular arc and a polyno...

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Bibliographic Details
Published inThe International journal of pressure vessels and piping Vol. 161; pp. 17 - 21
Main Authors Magnucki, Krzysztof, Jasion, Paweł, Rodak, Marcin
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2018
Subjects
Dished head
Elastic buckling
Pressure vessel
Thin-walled structure
Pressure vessel
Dished head
Thin-walled structure
Elastic buckling
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Summary:The paper is devoted to an untypical dished head equivalent to a thin-walled shell of revolution. The goal of analysis is the elimination of the edge effect arising at the joint of the cylindrical shell and the dished head. The meridian of the head is a composite curve of a circular arc and a polynomial of the fifth degree. The stress state in the dished head is analytically and numerically-FEM studied. Moreover, the buckling problem of the head is numerically calculated. •A new shape of a dished head is proposed.•Analytical description of the stress distribution is presented.•The equivalent stress in the head do not exceed these in cylindrical part of the tank.•Finite element analysis of stress and stability of a new head is provided.
ISSN:0308-0161
1879-3541
DOI:10.1016/j.ijpvp.2018.02.003