Triple junction benchmark for multiphase-field models combining capillary and bulk driving forces

PW Hoffrogge, S Daubner, D Schneider… - … and Simulation in …, 2024 - iopscience.iop.org
A benchmark problem is formulated which is well suited for the validation of mesoscopic
phase-field models for grain-boundary migration in polycrystals. First, an analytical steady …

[HTML][HTML] Modelling of martensitic phase transformation accounting for inertia effects

X Liu, D Schneider, M Reder, PW Hoffrogge… - International Journal of …, 2024 - Elsevier
As a diffusionless phase transformation, martensite evolves at the speed close to sound,
with its kinetics and morphology dominated by the mechanical energy. However, the …

Viscous stress approximations in diffuse interface methods for two-phase flow based on mechanical jump conditions

M Reder, A Prahs, D Schneider, B Nestler - Computer Methods in Applied …, 2024 - Elsevier
Diffuse interface approaches for multi-phase flow such as Hohenberg–Halperin type models
require the approximation of material properties in the diffuse transition region. Different …

Phase-field modeling of the morphological and thermal evolution of additively manufactured polylactic acid layers and their influence on the effective elastic …

A Elmoghazy, A Heuer, A Kneer, M Reder… - Progress in Additive …, 2024 - Springer
This study presents a comprehensive simulation of the fused deposition modeling (FFF)
process of polylactic acid (PLA) using the multiphase-field method. Compared to existing …

Chemo-mechanical benchmark for phase-field approaches

T Kannenberg, A Prahs, B Svendsen… - … and Simulation in …, 2024 - iopscience.iop.org
Phase-field approaches have gained increasing popularity as a consequence of their ability
to model complex coupled multi-physical problems. The efficient modeling of migrating …

Microstructure Characterization of Battery Materials Based on Voxelated Image Data: Computation of Active Surface Area and Tortuosity

S Daubner, B Nestler - Journal of The Electrochemical Society, 2024 - iopscience.iop.org
The reliable computation of microstructure metrics such as specific surface area and
tortuosity factors is key to bridge the gap between the battery microscale and fast …

Simulating hindered grain boundary diffusion using the smoothed boundary method

E Hanson, WB Andrews, M Powers… - … and Simulation in …, 2024 - iopscience.iop.org
Grain boundaries can greatly affect the transport properties of polycrystalline materials,
particularly when the grain size approaches the nanoscale. While grain boundaries often …

Phase-field based shape optimization of uni-and multiaxially loaded nature-inspired porous structures while maintaining characteristic properties

M Selzer, L Wallat, N Kersch, M Reder, M Seiler… - Discover Mechanical …, 2024 - Springer
Triply periodic minimal surfaces (TPMS) are highly versatile porous formations that can be
defined by formulas. Computationally based, load-specific shape optimization enables …

Sequential coupling of phase-field and vertex dynamics models for grain growth simulations

SDK Ayyalasomayajula - 2024 - escholarship.org
Grain growth plays a pivotal role in determining the macroscopic properties of several
polycrystalline materials. It is predominantly controlled by grain boundary and triple junction …

[BOOK][B] Understanding Degradation Phenomena in Solid-Oxide Fuel-Cell Anodes by Phase-Field Modeling and Analytics

PW Hoffrogge, A Weber - 2024 - library.oapen.org
The current work analyzes degradation effects in solid-oxide fuel cell anodes with the phase-
field method. A model extension for interface diffusion is formulated and calibrated. Large …