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 "eld in the biaxially stretched uniform sheet is predicted. Three fundamental mode vectors, i.e.
✦ LIBER ✦
Surface characterisation in forming processes by functional 3D parameters
✍ Scribed by S. Weidel; U. Engel
- Publisher
- Springer
- Year
- 2006
- Tongue
- English
- Weight
- 264 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0268-3768
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## Abstract A numerical simulation of an active media based forming process has been carried out by means of the finite element method, where molten plastic was used as pressure medium. The material behaviour of the sheet metal component has been modelled in the FEA package Ls‐Dyna with a temperatu