Issues in connection to the prediction of strain localization in metal sheets
Artikel i vetenskaplig tidskrift, 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.

Plane

Finite Element simulation

strain

Strain rate

FLD

Necking

Sheet metal

Författare

Kjell Mattiasson

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

M. Sigvant

Volvo

M Larsson

Manufacturing Engineering - Press

International Journal of Material Forming

1960-6206 (ISSN) 1960-6214 (eISSN)

Vol. 1 245-248

Ämneskategorier

Materialteknik

DOI

10.1007/s12289-008-0358-8