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Effect of continuum damage mechanics on springback prediction in metal forming processes

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Abstract

The influence of considering the variations in material properties was investigated through continuum damage mechanics according to the Lemaitre isotropic unified damage law to predict the bending force and springback in V-bending sheet metal forming processes, with emphasis on Finite element (FE) simulation considerations. The material constants of the damage model were calibrated through a uniaxial tensile test with an appropriate and convenient repeating strategy. Holloman’s isotropic and Ziegler’s linear kinematic hardening laws were employed to describe the behavior of a hardening material. To specify the ideal FE conditions for simulating springback, the effect of the various numerical considerations during FE simulation was investigated and compared with the experimental outcome. Results indicate that considering continuum damage mechanics decreased the predicted bending force and improved the accuracy of springback prediction.

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Authors and Affiliations

  1. School of Mechanical Engineering, Shiraz University, Shiraz, Mollasadra, Iran

    Ali Nayebi & Mehdi Shahabi

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  1. Ali Nayebi
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  2. Mehdi Shahabi
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Correspondence to Ali Nayebi.

Additional information

Recommended by Associate Editor Jun-Sik Kim

Ali Nayebi received his Ph.D. degree in mechanical engineering from University of Rennes, France, in 2002. He is currently a Professor of Mechanical Engineering in Shiraz University, Iran. His interests include plasticity, continuum damage mechanics, FGM, and creep and cyclic loading.

Mehdi Shahabi received his M.Sc. degree in Mechanical Engineering from Shiraz University in 2013. His interests include plasticity, FE simulation, metal formation, and continuum damage mechanics.

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Nayebi, A., Shahabi, M. Effect of continuum damage mechanics on springback prediction in metal forming processes. J Mech Sci Technol 31, 2229–2234 (2017). https://doi.org/10.1007/s12206-017-0419-3

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  • DOI: https://doi.org/10.1007/s12206-017-0419-3

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