Micromechanical Modelling of the Deformation in Dual-Phase Steels

Description of the project

Dual phase (DP) steels are widely used in the automotive industry to produce complex and strong parts for its high energy absorption resulting from an excellent combination of high strength with good formability. The excellent mechanical properties of DP steel are related to the existence of different phases in its microstructure with different ductility and strength levels. The macroscopic behavior of DP steel depends on the properties of ferrite and martensite, their volume fraction and morphology of the martensite islands.

To consider the influence of microstructural parameters of DP steels on their flow behavior in finite element modeling, micromechanical modeling based on representative volume element (RVE) technique can be used. Using this method helps to understand the influence of microstructure on mechanical properties and is therefore used for optimization of microstructural design.

The assigned tasks involve

• Literature research
• Developing 2D and 3D FEM models based on the microstructure using RVE technique
• Analyzing the results and presenting the report

Required qualifications/skills/interests

• Basic knowledge of steels and their metallurgy
• Good knowledge on FEM simulation in ABAQUS

Depending on the type of thesis, the tasks will be adapted!

If you are interested in this project, please send your CV to Somayeh.khani@tu-clausthal.de.