Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On Numerical Results of Reticulated Shell Buckling
This paper is mainly focused on the numerical methods which are used to calculate realistically the load-carrying behaviour of reticulated shell structures. It is generally assumed that for an economical analysis, aimed at the saving of material, the material non-linearity has to be taken into consideration if dead loads prevail. For this in the context of finite element analysis the stiffness matrices of elastic and elastic-plastic rod elements are presented.
In order to ensure the stability of structures it is indispensable to detect limit loads such as snap-through loads and bifurcation loads. Assuming that snap-through phenomena are quasi static, path-following algorithms can be implemented to trace the load-deflection curves in the postbuckling domain.
The testing of the reliability and stability of the algorithms requires a sufficient number of numerical examples. Few will be presented.
On Numerical Results of Reticulated Shell Buckling
This paper is mainly focused on the numerical methods which are used to calculate realistically the load-carrying behaviour of reticulated shell structures. It is generally assumed that for an economical analysis, aimed at the saving of material, the material non-linearity has to be taken into consideration if dead loads prevail. For this in the context of finite element analysis the stiffness matrices of elastic and elastic-plastic rod elements are presented.
In order to ensure the stability of structures it is indispensable to detect limit loads such as snap-through loads and bifurcation loads. Assuming that snap-through phenomena are quasi static, path-following algorithms can be implemented to trace the load-deflection curves in the postbuckling domain.
The testing of the reliability and stability of the algorithms requires a sufficient number of numerical examples. Few will be presented.
On Numerical Results of Reticulated Shell Buckling
Rothert, Heinrich (Autor:in) / Gebbeken, Norbert (Autor:in)
International Journal of Space Structures ; 7 ; 299-319
01.12.1992
21 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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