Simulation of lamellar cast iron components under TMF-loads

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The mechanical modelling of components made of grey cast iron is a non-trivial task, especially when subjected to non-isothermal thermo-mechanical loading conditions. Hence, elasto-plastic deformations as well as time-dependent creep processes have to be taken into account in the simulation in order to accurately model the mechanical stress-strain relationship. Consequently, a methodology to simulate the complex deformation behaviour based on a damage modified viscoplastic constitutive model is introduced. This methodology also contains a semi-automated parameter optimization strategy featuring a genetic algorithm. The correspondingly conducted cyclic mechanical simulation runs match well with the experimental data. Only marginal deviations in the evaluated stress-strain hysteresis can be found at quite high temperatures.
Original languageEnglish
Pages (from-to)5957-5962
Number of pages6
JournalMaterials Today: Proceedings
Issue number5, Part 1
Publication statusE-pub ahead of print - 24 Aug 2017


  • Cast iron
  • Constitutive material model
  • Cyclic viscoplasticity
  • Damage mechanics
  • Genetic algorithm
  • Thermo-mechanical fatigue (TMF)

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