Change search
ReferencesLink to record
Permanent link

Direct link
Element formulation and numerical techniques for stability problems in shells
KTH, Superseded Departments, Structural Engineering.ORCID iD: 0000-0002-5819-4544
2002 (English)In: Computer Methods in Applied Mechanics and Engineering, ISSN 0045-7825, E-ISSN 1879-2138, Vol. 191, no 35, 3775-3810 p.Article in journal (Refereed) Published
Abstract [en]

In the context of instability problems in shells or shell like structures, the objective of the present paper is twofold. Primarily, the paper describes how quasi-static, conservative instability problems can be considered in a multi-parametric context, where generalized path-following procedures for augmented equilibrium problems are used as computational tools. These allow systematic treatment of the higher-dimensional solution sets generated under the variations of certain parameters deemed relevant for the given problem. The efficient implementation of the above mentioned procedures requires however, as an essential ingredient, a non-linear finite element which is not only accurate but also inexpensive. To this end, a systematic view on a corotational Total Lagrangian formulation is described. The TRIC element of Argyris and coworkers is slightly modified, and introduced as core element formulation. Special emphasis is given to the alternative methods for treatment of finite three-dimensional rotations, with reference to both the element definition and solution algorithms. Numerical examples verify the element capabilities, and the possibility to completely describe instability phenomena of large, discretized models.

Place, publisher, year, edition, pages
2002. Vol. 191, no 35, 3775-3810 p.
Keyword [en]
laminated composite shells, structural instability, triangular element, finite rotations, beam-elements, computation, behavior, freedom, plates
URN: urn:nbn:se:kth:diva-21753ISI: 000177032300001OAI: diva2:340451
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Eriksson, Anders
By organisation
Structural Engineering
In the same journal
Computer Methods in Applied Mechanics and Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 43 hits
ReferencesLink to record
Permanent link

Direct link