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Continuum Mechanics and Thermodynamics

, Volume 28, Issue 4, pp 1009–1025 | Cite as

Constitutive model for flake graphite cast iron automotive brake discs: from macroscopic multiscale models to a 1D rheological description

  • L. Augustins
  • R. Billardon
  • F. Hild
Original Article

Abstract

One of the critical points of the thermomechanical fatigue design process is the correct description of the cyclic behavior of the material. This work focuses on the material of automotive brake discs, namely flake graphite cast iron. The specificity of this material is its asymmetric behavior under tensile and compressive loadings, which is due to the shape of graphite that acts as small cracks. Multiscale models inspired from the literature are first presented. They lead to a good description of the material behavior under cyclic loadings. An elastoviscoplastic constitutive model is then proposed in a one-dimensional setting in order to accurately describe cyclic tests from room temperature up to \({600^{\circ}{C}}\).

Keywords

Flake graphite cast iron Multiscale model Constitutive model 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.PSA Peugeot CitroenVelizy-Villacoublay CedexFrance
  2. 2.Messier-Bugatti-DowtyVélizy-VillacoublayFrance
  3. 3.LMT CachanENS Cachan/CNRS/University Paris SaclayCachan CedexFrance

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