Simulation of lamellar cast iron components under TMF-loads
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Abstract
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.
Details
Original language | English |
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Pages (from-to) | 5957-5962 |
Number of pages | 6 |
Journal | Materials Today: Proceedings |
Volume | 4.2017 |
Issue number | 5, Part 1 |
DOIs | |
Publication status | E-pub ahead of print - 24 Aug 2017 |