65 citations · 292 across the 14 of their papers we have counts for
15 papers
A multi-physics model for dislocation driven spontaneous grain nucleation and microstructure evolution in polycrystals
Izzet Tarik Tandogan, Michael Budnitzki, Stefan Sandfeld
The granular microstructure of metals evolves significantly during thermomechanical processing through viscoplastic deformation and recrystallization. Microstructural features such…
A multi-physics model for the evolution of grain microstructure
Izzet Tarik Tandogan, Michael Budnitzki, Stefan Sandfeld
When a metal is loaded mechanically at high temperatures, i.e. above 300 C, its grain microstructure evolves due to multiple physical mechanisms. Two of which are the curvature…
A model for the interaction of dislocations with planar defects based on Allen-Cahn type microstructure evolution coupled to strain gradient elasticity
M. Budnitzki, S. Sandfeld
In classical elasticity theory the stress-field of a dislocation is characterized by a -type singularity. When such a dislocation is considered together with an Allen-Cahn-typ…
Shear relaxation behind the shock front in 110 Molybdenum - From the Atomic Scale to Continuous Dislocation Fields
Roman Kositski, Dominik Steinberger, Stefan Sandfeld +1
In this work we study shock-induced plasticity in Mo single crystals, impacted along the <110> crystal orientation. In particular, the shear relaxation behind the shock front is qu…
A continuum approach to combined evolution and dislocation plasticity in Nickel-based superalloys
Ronghai Wu, Michael Zaiser, Stefan Sandfeld
Creep in single crystal Nickel-based superalloys has been a topic of interest since decades, and nowadays simulations are more and more able to complement experiments. In these all…
Size and Disorder Effects in Elasticity of Cellular Structures: From Discrete Models to Continuum Representations
Stefan Liebenstein, Stefan Sandfeld, Michael Zaiser
Open cellular solids usually possess random microstructures that may contain a characteristic length scale, such as the cell size. This gives rise to size dependent mechanical prop…