Prediction of limit strain in sheet meta
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Koichi Ito; Koichi Satoh; Moriaki Goya; Tohru Yoshida
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Article
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2000
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Elsevier Science
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English
โ 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.