Brandon Runnels

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Associate Professor

Iowa State University

United States

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About

Brandon Runnels is an Associate Professor at Iowa State University in the United States. His research primarily focuses on the structural properties and behavior of grain boundaries, employing advanced methods such as machine learning and phase field modeling. His recent articles explore topics including twin boundary migration, grain boundary energy trends, and the mechanics of composite propellant ignition and regression.

Recent Grants

Grant: Open

CAREER: A Multichannel Convolutional Neural Network Framework for Prediction of Damage Nucleation Sites in Microstructure

Open Date: 2022-06-01

Close Date: 2027-05-31

Grant: Close

Mesoscale and continuum modeling of solid-phase propellant coupled to gas-phase to determine continuum burn rates in AP/HTPB

Open Date: 2021-01-01

Close Date: 2025-01-01

Grant: Close

MRI: Acquisition of a High Performance Computing Cluster for Next-Generation Computational Science in Southern Colorado

Open Date: 2020-10-01

Close Date: 2023-09-30

Grant: Close

Extending the capability of the AMReX MLMG nodal solver

Open Date: 2019-05-01

Close Date: 2022-05-01

Articles (19)

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2022

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2021

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2021

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2021

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University of Illinois at Urbana-Champaign

UNITED STATES

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Brandon Runnels

Research Interests

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About

Recent Grants

Articles (19)

Fundamental microscopic properties as predictors of large-scale quantities of interest: Validation through grain boundary energy trends

The structure and migration of twin boundaries in tetragonal β-Sn: An application of machine learning based interatomic potentials

Atomistic-informed phase field modeling of magnesium twin growth by disconnections

Facet and energy predictions in grain boundaries: Lattice matching and molecular dynamics

Finite-temperature grain boundary properties from quasistatic atomistics

An atomistic survey of shear coupling in asymmetric tilt grain boundaries and interpretation using the disconnections framework

Finite kinematics diffuse interface mechanics coupled to solid composite propellant deflagration

Grain boundary network plasticity: Reduced-order modeling of deformation-driven shear-coupled microstructure evolution

Diffuse interface method for solid composite propellant ignition and regression

Robust, strong form mechanics on an adaptive structured grid: efficiently solving variable-geometry near-singular problems with diffuse interfaces

Automated determination of grain boundary energy and potential-dependence using the OpenKIM framework

Self-similar diffuse boundary method for phase boundary driven flow

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

Block structured adaptive mesh refinement and strong form elasticity approach to phase field fracture with applications to delamination, crack branching and crack deflection

Multiphase field modeling of grain boundary migration mediated by emergent disconnections

Optimal transportation of grain boundaries: A forward model for predicting migration mechanisms

Massively parallel finite difference elasticity using block-structured adaptive mesh refinement with a geometric multigrid solver

Experimental and numerical investigation into mechanical degradation of polymers

Phase field disconnections: A continuum method for disconnection-mediated grain boundary motion

Collaborators (5)

Ryan Elliott

Eric Homer

Vinamra Agrawal

Matt Quinlan

Harley Johnson

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