Sonja Hellebrand

Sonja Hellebrand is a Researcher at the Institute of Mechanics, University of Duisburg-Essen, Germany. Her work focuses on computational mechanics, particularly the numerical simulation of thermo-mechanical material behavior and residual stress analysis in hot bulk forming processes.

• B.Sc. in Technomathematics (Civil Engineering) (2012-2015)
• M.Sc. in Computational Mechanics (2016-2018)
• Doctoral Degree (2023) for research on microstructural residual stresses in targeted cooling

Her research employs multiscale approaches to model residual stresses during phase transformations (austenite-to-martensite) and thermo-mechanical coupling in metal processing. Recent publications in Finite Elements in Analysis and Design and Archive of Applied Mechanics demonstrate expertise in periodic boundary conditions, two-scale modeling, and transformation-induced stress analysis.

Her work bridges experimental validation with numerical simulations (e.g., Metals, 2019), emphasizing cooling rate effects and phase evolution. Collaborative efforts include projects with Prof. Schröder and Dr. Brands, focusing on stress stability and process optimization.

• Current affiliations: Institute of Mechanics, Faculty of Engineering Sciences, Department of Civil Engineering
• Teaching: Thermodynamics of Materials, Tensor Calculus, Computational Inelasticity