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Conventional Localized Instability Criterion of Sheet Metal Forming and its Application in FLD

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Abstract:

Instability criterion is an important factor to affect the accuracy of forming limit diagram (FLD), which signifies the strain state of metal material when material reaches forming limit. In this paper, conventional localized instability criteria during plastic forming of sheet metals are discriminated by various deduced methods based on plastic instability theory and experiment phenomena. The features, application in FLD of the instability criteria and challenges in future are described.

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Periodical:

Applied Mechanics and Materials (Volumes 633-634)

Pages:

607-610

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.633-634.607

Citation:

Cite this paper

Online since:

September 2014

Authors:

Jing Li, Lian Fa Yang*

Keywords:

Forming Limit Diagram (FLD), Instability Criterion, Sheet Metal

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Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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