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Residual stresses and initial imperfections in non-linear analysis

Autor
Pastor, M.M.; Bonada, J.; Roure, F.; Casafont, M.
Tipus d'activitat
Article en revista
Revista
Engineering structures
Data de publicació
2013-01
Volum
46
Pàgina inicial
493
Pàgina final
507
DOI
https://doi.org/10.1016/j.engstruct.2012.08.013 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/16636 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/journal/01410296 Obrir en finestra nova
Resum
When non-linear finite element analysis (FEA) of cold-formed thin-walled steel sections subject to compression is carried out, an initial perturbation must be introduced in the model in order to trigger the failure due to instability. The most usual way is to introduce an equivalent initial imperfection in the model (conventional models) that includes the effects of geometric imperfections and residual stresses due to the roll-forming manufacturing process, possible loading eccentricity, etc. It...
Citació
Pastor, M. [et al.]. Residual stresses and initial imperfections in non-linear analysis. "Engineering structures", Gener 2013, vol. 46, núm. January, p. 493-507.
Paraules clau
Residual Stresses, Geometric Imperfections, Cold-formed Steel Sections, Fe Analysis
Grup de recerca
REMM - Recerca en Estructures i Mecànica de Materials