Effect of Nonlinear Kinematic Hardening Model on Draw-Bend Springback Behavior of Dual Phase Steel

Chao Lu; Yong Lin Kang; Guo Ming Zhu

doi:10.4028/www.scientific.net/AMR.538-541.448

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Effect of Nonlinear Kinematic Hardening Model on...

Effect of Nonlinear Kinematic Hardening Model on Draw-Bend Springback Behavior of Dual Phase Steel

Abstract:

The aim of this study is to evaluate the effects of two nonlinear kinematic hardening models on springback prediction of dual phase steel. Young’s modulus degradation with plastic strain was also considered. Material parameters of both hardening models were identified by fitting the experimental tension-compression-tension stress-strain curves using optimization software LS-OPT. The results showed that the nonlinear kinematic hardening models gave good prediction compared with measured data. And a 2-D draw-bend springback benchmark was applied to assess the material models with identified parameters. The accuracy of springback simulation improved when both kinematic hardening and Young’s modulus degradation were considered. Yoshida model gave the best overall springback prediction in the draw-bend springback of dual phase steel.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

448-452

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.448

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Online since:

June 2012

Authors:

Chao Lu*, Yong Lin Kang, Guo Ming Zhu

Keywords:

Dual Phase Steel, Hardening Model, Springback

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