Springback Prediction of Aluminum Alloy Sheet under Changing Loading Paths with Consideration of the Influence of Kinematic Hardening and Ductile Damage. Yue, Z., Qi, J., Zhao, X., Badreddine, H., Gao, J., & Chu, X. Metals, 8(11):950, November, 2018. ![Springback Prediction of Aluminum Alloy Sheet under Changing Loading Paths with Consideration of the Influence of Kinematic Hardening and Ductile Damage [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Springback prediction of sheet metal forming is always an important issue in the industry, because it greatly affects the final shape of the product. The accuracy of simulation prediction depends on not only the forming condition but also the chosen material model, which determines the stress and strain redistributions in the formed parts. In this paper, a newly proposed elastoplastic constitutive model is used, in which the initial and induced anisotropies, combined nonlinear isotropic and kinematic hardenings, as well as isotropic ductile damage, are taken into account. The aluminum alloy sheet metal AA7055 was chosen as the studied material. In order to investigate springback under non-proportional strain paths, three-point bending tests were conducted with pre-strained specimens, and five different pre-straining states were considered. The comparisons between numerical and experimental results highlighted the hard effect of both kinematic hardening and ductile damage on the springback prediction, especially for a changed loading path case.
@article{yue_springback_2018,
title = {Springback {Prediction} of {Aluminum} {Alloy} {Sheet} under {Changing} {Loading} {Paths} with {Consideration} of the {Influence} of {Kinematic} {Hardening} and {Ductile} {Damage}},
volume = {8},
copyright = {http://creativecommons.org/licenses/by/3.0/},
url = {https://www.mdpi.com/2075-4701/8/11/950},
doi = {10.3390/met8110950},
abstract = {Springback prediction of sheet metal forming is always an important issue in the industry, because it greatly affects the final shape of the product. The accuracy of simulation prediction depends on not only the forming condition but also the chosen material model, which determines the stress and strain redistributions in the formed parts. In this paper, a newly proposed elastoplastic constitutive model is used, in which the initial and induced anisotropies, combined nonlinear isotropic and kinematic hardenings, as well as isotropic ductile damage, are taken into account. The aluminum alloy sheet metal AA7055 was chosen as the studied material. In order to investigate springback under non-proportional strain paths, three-point bending tests were conducted with pre-strained specimens, and five different pre-straining states were considered. The comparisons between numerical and experimental results highlighted the hard effect of both kinematic hardening and ductile damage on the springback prediction, especially for a changed loading path case.},
language = {en},
number = {11},
urldate = {2018-12-14TZ},
journal = {Metals},
author = {Yue, Zhenming and Qi, Jiashuo and Zhao, Xiaodi and Badreddine, Houssem and Gao, Jun and Chu, Xingrong},
month = nov,
year = {2018},
keywords = {ductile damage, mixed hardening, non-proportional loading paths, plastic anisotropy, springback},
pages = {950}
}
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