Comparison of bifurcation analysis and maximum force criteria in the prediction of necking in stretched metal sheets

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In the present work, diffuse necking is investigated for stretched metal sheets using two different approaches, namely bifurcation theory and maximum force principle. The contribution includes a critical analysis and a systematic comparison of their respective ability to predict necking. In particular it is shown that, in contrast to bifurcation theory, which is of quite general applicability, some restrictions are associated with the application of maximum force conditions. It is noteworthy that the well-known Swift diffuse necking criterion is recovered through bifurcation analysis. Recall that Swift's criterion has long been attributed in the literature to the maximum force principle, while it is shown here to rather originate from the bifurcation analysis, which provides it with a sound theoretical justification.

Originele taal-2Engels
TitelProceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015
RedacteurenE. Oñate, D.R.J. Owen, D. Peric, M. Chiumenti
UitgeverijInternational Center for Numerical Methods in Engineering (CIMNE)
Pagina's182-193
Aantal pagina's12
ISBN van geprinte versie9788494424465
StatusGepubliceerd - 2015
Evenement13th International Conference on Computational Plasticity. Fundamentals and Applications (COMPLAS 2015), September 1-3, 2015, Barcelona, Spain - Barcelona, Spanje
Duur: 1 sep 20153 sep 2015
http://congress.cimne.com/complas2015/frontal/default.asp

Congres

Congres13th International Conference on Computational Plasticity. Fundamentals and Applications (COMPLAS 2015), September 1-3, 2015, Barcelona, Spain
Verkorte titelCOMPLAS 2015
LandSpanje
StadBarcelona
Periode1/09/153/09/15
Internet adres

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