"Crystal plasticity modeling under extreme conditions"
Funding: China Scholarship Council
Project period: 2015 – 2019
Principal Investigators: Dr. Javier Segurado (javier.segurado(AT)imdea.org) and Prof. Ignacio Romero (ignacio.romero(AT)imdea.org)
The goal of this research is the development of coupled thermomechanical crystal plasticity models to simulate problems under extreme conditions: very large strain rates and high temperatures.
Firstly, the effect of strain rate and temperature will be introduced in the crystal plasticity model through the use of physically based models. The basis of these studies is the thermally activated character of many deformation mechanisms: dislocation nucleation, slip, cross slip and other short range interactions. Secondly, a strong thermo-mechanical coupling framework will be proposed at the crystal level. The aim here is to extend the present modelling approaches to include thermal strains, thermally dependent plastic behaviour and the ability to account for high strain rates. This framework will contain most of the details necessary for simulating processes under extreme conditions such as machining, impact, etc.