Time: 3:00 p.m.
Place: Ruhr-Universität Bochum
Javier Llorca, Universidad Politécnica de Madrid, Getafe, Madrid, Spain
Javier Segurado, Universidad Politécnica de Madrid, Getafe, Madrid, Spain
The final objective of virtual testing of metallic materials is to predict the macroscopic mechanical properties of engineering alloys taking into account the microstructural features at different length scales (from nm to mm) by means of bottom-up multiscale modelling strategies. These strategies are currently under development and it is often more practical to measure the mechanical properties at the lower length scales (nm or µm) using nanomechanical testing techniques and use this information as input predict the macroscopic behaviour.
This approach –as developed at IMDEA Materials Institute– is presented in the two parts of this talk. In the first one, the current nanomechanical testing capabilities to measure the mechanical properties of single crystals and polycrystals at the nm and µm as a function of the microstructural features will be presented. This information will be used in the second part to predict the macroscopic mechanical properties of single crystals and polycrystals by means of crystal plasticity finite element analysis and computational homogenization. Examples of application in Mg alloys and Ni-based superalloys will be shown.