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On the choice of the linear element for corotational triangular shells
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0003-2104-382X
2006 (English)In: Computer Methods in Applied Mechanics and Engineering, ISSN 0045-7825, E-ISSN 1879-2138, Vol. 195, no 44-47, 6362-6377 p.Article in journal (Refereed) Published
Abstract [en]

The corotational formulation for triangular thin shell elements presented in [A. Eriksson, C. Pacoste, Element formulation and numerical techniques for stability problems in shells, Comput. Methods Appl. Mech. Engrg. 191 (2002) 3775-3810] is further developed in order to incorporate elasto-plastic deformations. Several local formulations are implemented and tested. These local elements are geometrically linear and are obtained by the by superposition of a membrane and a plate part. Eleven elastic and elasto-plastic examples are presented. Both the incremental and deformation theories of plasticity are considered. The first objective is to assess the performance of the present formulation in modelling elasto-plastic instability problems. The second objective is to compare the different linear local formulations: it is shown that some of them give better results in instability problems.

Place, publisher, year, edition, pages
2006. Vol. 195, no 44-47, 6362-6377 p.
Keyword [en]
corotational method, shell finite elements, instability problems, finite-elements, formulation, instability, triangles, solids, beams
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-15912DOI: 10.1016/j.cma.2006.01.007ISI: 000239680100030Scopus ID: 2-s2.0-33745958974OAI: oai:DiVA.org:kth-15912DiVA: diva2:333954
Note
QC 20100525. QC 20111118Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Battini, Jean-Marc

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