PhD opportunities

Experimental design & thermo-mechanical modeling of HFQ process on AA2219 (CEMEF and Airbus)

Thesis proposal

Area of expertiseMécanique numérique et Matériaux
Doctoral SchoolSFA - Sciences Fondamentales et Appliquées
SupervisorBOUCHARD Pierre-Olivier
Co-supervisorMOCELLIN Katia
Research unitCentre de Mise en Forme des Matériaux
Keywordsthermomechanical process design, advanced numerical simulations
AbstractThis PhD aims at a better understanding of the HFQ process through the design of a laboratory test
coupled with the development of a numerical model able to address the full complexity of this thermomechanical process. The main challenges rely on the relationship between HFQ process conditions,
induced microstructure and corresponding in-use properties. This understanding, coupled with a
representative numerical modeling of the process will provide both understanding and control of the
HFQ process for Airbus in the manufacturing of their parts.
● Design and development of a laboratory HFQ testing device
○ Development of an in-house deep-drawing device with control of sheet and punch
○ Adapted Digital Image Correlation (DIC) and temperature measurements to follow the
thermomechanical loading path during the test
○ Development of adapted thermomechanical loading paths to match the industrial ones
○ Design of specific microstructures (based on process parameters and T°) as input to PhD2
● Numerical modeling of the HFQ process
○ Thermal transfer analysis and modeling thanks to the experimental device. Transfer
coefficients are of prime importance for accurate numerical simulations
○ Numerical modeling of the HFQ process (Abaqus) & validation of the numerical modeling
strategy through both thermal and mechanical measurements
ProfileMaster or engineering degree with expertise in non-linear solid mechanics
and thermomechanical behavior of materials. The PhD will address both experimental and
numerical aspects of the process. The candidate will therefore have to demonstrate a good
experience in one of these 2 aspects and a great motivation to develop the second during the
FundingConvention CIFRE