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dislocation density

Dislocation density informed eigenstrain based reduced order homogenization modeling: verification and application on a titaniumalloy structure subjected to cyclic loading

Submitted by xiangzhang on
research
multiscale modeling
reduced order model
Titanium
dislocation density
Crystal plasticity

https://doi.org/10.1088/1361-651X/ab602e

Link to author's personal copy

Abstract:

Position is not anymore available --- Research Position at TU Darmstadt

Submitted by xubaixiang on
job
dislocation density
crystal plastictiy
elastic-viscoplasticity
texture development
hardening model


At the Division of Mechanics
of Functional Materials in the institute of Materials Science, TU Darmstadt the
following research position is to be filled as soon as possible:

 Research position (E 13 TV – TU
Darmstadt), Doctoral Candidate/Postdoc

The position is first
scheduled for three years in the case of doctoral candidate and two years in
the case of Postdoc (an extension is possible).

 

Tasks and Opportunities

Continuity in the Plastic Strain Rate and its Influence on Texture Evolution

Submitted by Justin C. Mach on
research
finite deformation
viscoplasticity
Crystal plasticity
dislocation density
continuity

Classical plasticity models evolve state variables in a spatially independent manner through (local) ordinary differen- 

tial equations, such as in the update of the rotation field in crystal plasticity. A continuity condition is derived for the 

lattice rotation field from a conservation law for Burgers vector content—a consequence of an averaged field theory 

of dislocation mechanics. This results in a nonlocal evolution equation for the lattice rotation field. The continuity 

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