Prediction of limit strain in sheet metal-forming processes by 3D analysis of localized necking

Theoretical prediction of forming limit strain of sheet metal is developed in the framework of the three-dimensional general bifurcation theory. The onset of the three-dimensional discontinuous velocity field in the biaxially stretched uniform sheet is predicted. Three fundamental mode vectors, i.e....

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Veröffentlicht in:	International journal of mechanical sciences 2000-11, Vol.42 (11), p.2233-2248
Hauptverfasser:	Ito, Koichi, Satoh, Koichi, Goya, Moriaki, Yoshida, Tohru
Format:	Artikel
Sprache:	eng
Schlagworte:	3D theory Bifurcation Bifurcation (mathematics) Discontinuous velocity fields FLD Forming limit strain Localized necking Modal analysis Numerical analysis Sheet metal Sheet metal forming Strain rate Stress analysis Stretching
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