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TECHNICAL PAPERS

Stress and Strain Histories of Multiple Bending-Unbending Springback Process

[+] Author and Article Information
H.-M. Huang, S.-D. Liu

National Steel Corporation, 12261 Market St., Livonia, MI 48150

S. Jiang

DaimlerChrysler Corporation, 800 Chrysler Dr., Auburn Hills, MI 48326

J. Eng. Mater. Technol 123(4), 384-390 (Jul 24, 2001) (7 pages) doi:10.1115/1.1395574 History: Received July 24, 2001
Copyright © 2001 by ASME
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References

Figures

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Modified drawbead simulator used in the experiments
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Comparisons between experiments and predicted results
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Comparisons of predicted curvature histories for an element passing through drawbead under different die gaps
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Comparisons of predicted strain histories of the lower surface for an element passing through drawbead under different die gaps
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The corresponding locations of a material element on the blank at five loading steps
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Strain distributions through the thickness predicted by the isotropic hardening model
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Strain distributions through the thickness predicted by the kinematic hardening model
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Stress distributions through the thickness predicted by the isotropic hardening model
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Stress distributions through the thickness predicted by the kinematic-hardening model
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Yield Loci of the lower surface at the bending radii at die-gap 2t based on the isotropic and kinematic hardening models. Notes: TYLC-Trace of Yield Locus Center
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The stress versus strain curves of the lower surface at die gap 2t based on the isotropic and kinematic hardening models
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Strain distributions through the thickness predicted by the solid element
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Stress distributions through the thickness predicted by the solid element
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Comparisons of the strain histories of the lower surface predicted by the shell and the solid elements

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