An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel

  • Mohamed M
  • Li N
  • Wang L
  • et al.
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Abstract

© 2015 Owned by the authors, published by EDP Sciences. In this paper a comparative analysis of failure prediction when using the solution heat treatment cold die forming and quenching process, known as HFQ TM , for forming an aluminium alloy AA6082 automotive panel part (bulkhead panel), is presented. An experimental programme has been designed and a series of tests have been carried out to investigate the effect of process parameters on the success of forming the complex-shaped automotive panel component using the high strength aluminium alloy. A set of unified viscoplastic plane-stress continuum damage mechanics (2D-CDM) constitutive equations was calibrated for AA6082 over a temperature range of 450 °C-525 °C and strain rates of 0.1, 1.0 and 10 s -1 , and then was integrated into the commercial finite element code, LS-DYNA, via a user-defined material subroutine, UMAT, for the forming process simulation. The results show that the CDM model can be used to provide accurate formability and failure predictions.

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APA

Mohamed, M., Li, N., Wang, L., Fakir, O. E., Lin, J., Dean, T., & Dear, J. (2015). An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. MATEC Web of Conferences, 21, 05011. https://doi.org/10.1051/matecconf/20152105011

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