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Some numerical aspects of necking solution in prediction of sheet metal forming limits by strain gradient plasticity

โœ Scribed by A.R. Safikhani; R. Hashemi; A. Assempour


Publisher
Elsevier Science
Year
2009
Weight
774 KB
Volume
30
Category
Article
ISSN
0261-3069

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Prediction of limit strain in sheet meta
โœ Koichi Ito; Koichi Satoh; Moriaki Goya; Tohru Yoshida ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 360 KB

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.