Publication detail

Influence of initial imperfections of changing amplitude on the laterally loaded cylindrical shell

Year: 2017

Type of publication: ostatní - článek ve sborníku

Name of source: Computational Mechanics 2017 : 33rd conference with international participation. Book of extended abstracts

Publisher name: Západočeská univerzita v Plzni

Place: Plzeň

Page from-to: 149-150

Titles:

Language	Name	Abstract	Keywords
eng	Influence of initial imperfections of changing amplitude on the laterally loaded cylindrical shell	The article is devoted to the influence of initial imperfections of changing amplitude ∆w on the carrying capacity of the laterally loaded cylindrical shell. The assessed structure is considered as a part of the simplified case of cylindrical shell (road tank) located on two saddle supports. The initial imperfections of the shape are created by pushing the saddle support into the shell. So the new deformed shape of the shell is used as an imperfect shell in the following nonlinear analysis. The main objective of the analysis is to find the reduction factor α depending on the change of geometric parameters of the numerical model (embracing angle of saddle support 2θ, wall thickness of the shell t) and on the change of amplitude of initial imperfections (with regard to shell thickness ∆w/t). Numerical analysis is carried out by means of a computer program COSMOS/M based on the finite element method (FEM).	laterally loaded cylindrical shell; initial imperfections of changing amplitude; finite element method; carrying capacity

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