Development and Application of the Finite Element Analysis Program of the Stress-Based Forming Limit Criterion for Sheet Metal Forming

Ming He Chen; J.H. Li; Lin Gao; Dun Wen Zuo; Min Wang

doi:10.4028/www.scientific.net/MSF.561-565.1995

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HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Development and Application of the Finite Element...

Development and Application of the Finite Element Analysis Program of the Stress-Based Forming Limit Criterion for Sheet Metal Forming

Abstract:

In order to solve the problem existed in the numerical simulation of sheet metal forming for its use the strain-based forming limit diagram as criterion, which has the flaw of dependence on the strain paths, this paper develops the finite element analysis program based on the stress forming limit criterion applicable to the blank plastic forming technique, which follows the stress-strain transformation relationship when the sheet metal is undergoing plastic deformation, chooses Hill’s quadratic normal anisotropic criterion as computational model and selects the commercial finite element code Dynaform as its development environment. Also it be analyzed the finite element numerical simulation results of two deep drawing parts by the developed program module and realizes the prediction of sheet metal forming limit adopting the FLSD as criterion. The stress-based forming limit criterion for the developed program provides a new means to analyze the forming limit for the multistage sheet metal forming.

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Materials Science Forum (Volumes 561-565)

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1995-1998

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https://doi.org/10.4028/www.scientific.net/MSF.561-565.1995

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October 2007

Authors:

Ming He Chen, J.H. Li, Lin Gao, Dun Wen Zuo, Min Wang

Keywords:

DYNAFORM, Finite Element Analysis (FEA), FLSD, Numerical Simulation, Sheet Metal Forming

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