# Publications

## Journal Articles

A taxonomy of grain boundary migration mechanisms via displacement texture characterization [pdf]

I Chesser, B Runnels, E Holm*Acta Materialia*(2021)Multiphase field modeling of grain boundary migration mediated by emergent disconnections [pdf]

M Gokuli, B Runnels*Acta Materialia*(2021)Block structured adaptive mesh refinement and strong form elasticity approach to phase field fracture with applications to delamination, crack branching and crack deflection [pdf]

V Agrawal, B Runnels*Computer Methods in Applied Mechanics and Engineering*(2021)Optimal transportation of grain boundaries: A forward model for predicting migration mechanisms [pdf]

I Chesser, E Holm, B Runnels*Acta Materialia*(2021)Massively parallel finite difference elasticity using a block-structured adaptive mesh refinement with a geometric multigrid solver [pdf]

B Runnels, V Agrawal, W Zhang, A Almgren*Journal of Computational Physics*(2020)Experimental and numerical investigation into mechanical degradation of polymers

A Celestine, V Agrawal, B Runnels*Composites Part B: Engineering*(2020)Phase field disconnections: A continuum method for disconnection-mediated grain boundary motion [pdf]

B Runnels, V Agrawal*Scripta Materialia*(2020)A continuum thermodynamic framework for grain boundary motion [pdf]

I Chesser, T Yu, C Deng, E Holm, B Runnels*Journal of the Mechanics and Physics of Solids*(2020)A new approach for phase field modeling of grain boundaries with strongly nonconvex energy [pdf]

JG Ribot, V Agrawal, B Runnels*Modelling and Simulation in Materials Science and Engineering*(2019)Determination of minimal energy facet structures in Sigma3 and Sigma9 grain boundaries: experiment and simulation [pdf]

AC Leff, B Runnels, A Nye, ML Taheri, IJ Beyerlein*Materialia*(2019)A projection-based reformulation of the coincident site lattice Sigma for arbitrary bicrystals at finite temperature [pdf][commentary]

B Runnels*Acta Crystallographica A*(2017)A relaxation method for the energy and morphology of grain boundaries and interfaces [pdf]

B Runnels, IJ Beyerlein, S Conti, M Ortiz*Journal of the Mechanics and Physics of Solids*(2016)An analytical model of interfacial energy based on a lattice-matching interatomic energy [pdf]

B Runnels, IJ Beyerlein, S Conti, M Ortiz*Journal of the Mechanics and Physics of Solids*(2016)Active structural health monitoring during sub-orbital space flight

A Zagrai, W Reiser, B Runnels, C White, A Light-Marquez, S Marinsek, A Murray, S Taylor, G Park and C Farrar*Journal of the Acoustical Society of America*(2012)

## Conference Papers

Continuum modeling of solid-phase propellant to determine burn rates in AP HTPB

B Kanagarajan, B Runnels*AIAA SciTech*(2022)A Diffuse Interface Method for the Coupling of Solid and Gaseous Phases in a 1D Verification Problem for Combustion of AP HTPB

E Schmidt, J.M Quinlan, B Bojko, B Runnels*AIAA SciTech*(2022)Design, development, and assembly of sub-orbital space flight structural health monitoring experiment

W Reiser, B Runnels, C White, A Light-Marquez, A Zagrai, D Siler, S Marinsek, A Murray, S Taylor, G Park, C Farrar, R Sansom*SPIE Conference Proceedings*(2012)

## Presentations

Phase field emergent disconnections: Exploring complex grain boundary migration from the mesoscale perspective

Contributed Talk,USNCCM 2021, Virtual, 7/26/2021Microstructure evolution in polycrystalline metals: from optimal transportation to phase field disconnections

Seminar,Bangalore, India, 3/31/2021Quantifying potential dependence of grain boundary properties using OpenKIM

Invited Talk,Society of Engineering Science Annual Technical Meeting, Virtual, 9/30/2020Unifying mechanisms of grain boundary migration through a continuum thermodynamic framework: Applying insights from crystal plasticity to microstructure evolution

Seminar,Auburn, AL, 1/24/2020Unifying mechanisms of grain boundary migration through a continuum thermodynamic framework: Applying insights from crystal plasticity to microstructure evolution

Seminar,Boulder, CO, 11/1/2019Unifying mechanisms of grain boundary migration through a continuum thermodynamic framework: Applying insights from crystal plasticity to microstructure evolution

Seminar,Santa Barbara, CA, 10/21/2019Unifying mechanisms of grain boundary migration through a continuum thermodynamic framework

Invited Talk,USACM Thematic Workshop on Recent Advances in the Modeling and Simulation of the Mechanics of Nanoscale Materials, Philadelphia, PA, 8/22/2019Mesoscale Modeling and Simulation of Microstructure Evolution Driven by Strong Anisotropic Grain Boundary Energy and Mobility

Contributed Talk,USNCCM 2019, Austin, TX, 7/30/2019Atomistic to Continuum Modeling of Metalized Polyvinylidene Fluoride with Aluminum Nanoparticles

Contributed Talk,TMS 2019, San Antonio, TX, 3/12/2019The effect of strong anisotropic grain boundary energy on microstructure formation and evolution: mesoscale modeling and simulation

Contributed Talk,TMS 2019, San Antonio, TX, 3/12/2019Solid mechanics applications with AMReX: Simulating microstructure evolution in metals, solid burn in energetics, and degradation in polymers

Invited Talk,SIAM CSE, Spokane, WA, 2/25/2019The effect of strong anisotropic grain boundary energy and mobility on microstructure formation and evolution: mesoscale modeling and simulation

Seminar,Ft Collins, CO, 2/19/2019The effect of strong anisotropic grain boundary energy and mobility on microstructure formation and evolution: mesoscale modeling and simulation

Seminar,Davis, CA, 1/15/2019The effect of strong anisotropic grain boundary energy and mobility on microstructure formation and evolution: mesoscale modeling and simulation

Invited Talk,Multiscale Materials Modeling 2018, Osaka, Japan, 11/1/2018Phase field modeling of microstructure evolution with anisotropy and orientation dependence, informed by a realistic model for boundary energy

Seminar,Dayton, OH, 7/9/2018Computational modeling of VDF composites

Invited Talk,Fluoropolymer 2018, Denver, CO, 6/26/2018Phase field modeling of grain boundary migration with anisotropy and orientation dependence, informed by a realistic model for boundary energy

Contributed Talk,USNC/TAM, Chicago, IL, 6/8/2018Phase Field Simulation of Microstructure Evolution Driven by Strong Grain Boundary Anisotropy Computed Using Realistic Models for Grain Boundary Energy

Contributed Talk,TMS 2018, Phoenix, AZ, 3/12/2018How grain boundaries drive material behavior: from analytic modeling to microstructure evolution

Seminar,Auburn, AL, 10/23/2017How grain boundaries drive material behavior: from analytic modeling to microstructure evolution

Seminar,Rolla, MO, 10/19/2017Phase field simulation of microstructure evolution driven by grain boundary anisotropy - Kinetics of microfaceting with realistic boundary energy

Contributed Talk,SES 2017, Boston, MA, 7/27/2017Lattice matching for predicting anisotropic grain boundary properties...towards grain boundary engineering for designed microstructure

Contributed Talk,TMS 2017, San Diego, CA, 2/27/2017Modeling and simulation of grain boundary anisotropy-driven mechanics in fcc and bcc materials

Contributed Talk,SES 2016, College Park, MA, 10/4/2016Modeling grain boundaries in metals with optimal transportation theory, calculus of variations, and the phase field method

Seminar,Ft Collins, CO, 9/15/2016Modeling grain boundaries in metals with optimal transportation theory, calculus of variations, and the phase field method

Seminar,Colorado Springs, CO, 9/8/2016Modeling anisotropic grain boundary energy and morphology in cubic crystals with applications to microstructural evolution

Contributed Talk,EMI/PMC 2016, Nashville, TN, 5/24/2016A general and predictive model of anisotropic grain boundary energy and morphology

Contributed Talk,TMS 2016, Nashville, TN, 2/16/2016A general and predictive model of anisotropic grain boundary energy and morphology for polycrystal-level simulations

Seminar,Nashville, TN, 2/15/2016Modeling grain boundary energy anisotropy with applications to morphology and computational microstructural evolution

Seminar,Minneapolis, MN, 12/1/2015A new model for the energy and morphology of grain boundaries and interfaces

Contributed talk,IMECE 2015, Houston, TX, 11/15/2015Modeling grain boundary energy anisotropy with applications to morphology and computational microstructural evolution

Seminar,Golden, CO, 11/1/2015A new model for anisotropic grain boundaries: a geometric and variational approach for predicting energy and morphology

Contributed Talk,SES 2015, College Station, TX, 10/1/2015Temperature-dependent modeling of grain boundary energy anisotropy and applications to interface morphology

Invited Talk,American Physical Society - Four Corners Annual Meeting, Phoenix, AZ, 10/1/2015A fast, general, predictive model for grain boundary energy anisotropy with applications to morphology and computational microstructural evolution

Seminar,Boulder, CO, 10/1/2015A variational approach to interfaces: a new method for predicting energy and morphology of grain boundaries

Contributed talk,San Diego, CA, 7/1/2015A variational approach to crystalline interfaces: a new method for predicting interface energy and morphology

Seminar,Boulder, CO, 10/1/2014A relaxation method for predictively determining interface morphology

Contributed talk,SES 2014, Lafeyette, IN, 10/1/2014A general geometric model for interface energy

Contributed talk,United States National Congress on Theoretical and Applied Mechanics, East Lansing, MI, 6/1/2014An analytical model for predicting energy and morphology of arbitrary crystal interfaces

Seminar,Socorro, NM, 9/24/2013Modeling of thermally-activated dislocation cross-slip

Contributed talk,Los Alamos, NM, 8/8/2012