Constitutive modeling of the deformation and phase transition mechanisms in partially stabilized ZrO2 ceramics as well as of the thermomechanical response of ceramic-steel composites (C04)

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Stress induced martensitic phase transitions in zirconia have a major contribution to the overall thermomechanical response of TRIP-steel-ZrO2-composites. The aim of this project is to gain insight into the involved phase transitions on all length scales and to use these findings for the development of a constitutive law for cast TRIP-steel-ZrO2-composites. To this end we use methods from phenomenological continuum modelling, homogenization theory as well as phase field models based on Landau-Ginzburg theory in order to directly simulate the formation of microstructures.