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Parametric study on crashworthiness of automotive sheet alloy

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Abstract

Crashworthiness (or collision performance) is a critical design factor in optimizing automotive part products. In this study, a numerical sensitivity analysis was performed to investigate the effects of material properties on crashworthiness for automotive sheet materials. As standard material parameters, the measured mechanical properties of AA 6111-T4 sheet were considered, based on the anisotropic non-quadratic yield function, YId2004-18p, and a combination type non-linear isotropic-kinematic hardening law. The constitutive law was implemented into codes of the commercial finite element program ABAQUS, using user material subroutines. As for process simulations, spring-back after forming as well as sheet forming and collision were included in this evaluation.

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Authors and Affiliations

  1. Ferrous Alloy Research Group, Korea Institute of Materials Science, 66, Sangnam-dong, Changwon-si, 641-010, Gyeongnam, Korea

    M. G. Lee & S. J. Kim

  2. School of Materials Science and Engineering, Seoul National University, 56-1, Shinlim-dong, Gwanak-gu, 151-742, Seoul, Korea

    H. Ryou & K. Chung

  3. Materials & Processes Lab., R & D Center & NAO Planning, General Motors, 48090-9055, Warren, MI, USA

    C. Kim

Authors
  1. M. G. Lee
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  2. H. Ryou
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  3. C. Kim
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  4. S. J. Kim
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  5. K. Chung
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Corresponding author

Correspondence to K. Chung.

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Lee, M.G., Ryou, H., Kim, C. et al. Parametric study on crashworthiness of automotive sheet alloy. Met. Mater. Int. 14, 21–31 (2008). https://doi.org/10.3365/met.mat.2008.02.021

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  • DOI: https://doi.org/10.3365/met.mat.2008.02.021

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