Issues in connection to the prediction of strain localization in metal sheets
Paper i proceeding, 2008

The current paper deals with the prediction of strain localization in metal sheets. Especially the effect of strain rate dependency on the necking phenomenon is treated. The ability of FEM to predict strain localization during simulations of sheet forming operations is investigated. An approach for the determination of the strain rate material parameters, based on an experimentally determined FLD0, is suggested. The current approach is demonstrated for three sheet materials, and from the results the approach can be judged as promising.

FLD

Necking

Strain rate

Sheet metal

Finite Element simulation

Plane strain

Författare

Kjell Mattiasson

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Mats Larsson

Proceedings of the 11th International Esaform Conference on Material Forming, Lyon, France, April 23-25, 2008

Ämneskategorier

Annan materialteknik