On the choice of the linear element for corotational triangular shells
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
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.
corotational method, shell finite elements, instability problems, finite-elements, formulation, instability, triangles, solids, beams
IdentifiersURN: urn:nbn:se:kth:diva-15912DOI: 10.1016/j.cma.2006.01.007ISI: 000239680100030ScopusID: 2-s2.0-33745958974OAI: oai:DiVA.org:kth-15912DiVA: diva2:333954
QC 20100525. QC 201111182010-08-052010-08-052011-11-18Bibliographically approved