Publications

2023

A. Rida, S.I. Rao, J.A. El-Awady, “Interaction of prismatic screw dislocations with the interface side face in Ti alloys”, arXiv:2305.05737, 2023.

Y. Gu, C. Styles, J.A. El-Awady, “Revisiting the Hall-Petch relationship from a physics-informed machine learning approach”, arXiv:2209.04891, 2023

M. Sudmanns, A.P. Iliopoulos, J.G. Michopoulos, J.A. El-Awady, “Modeling the evolution of representative dislocation structures under high thermo-mechanical conditions during Additive Manufacturing of Alloys”, Journal of the Mechanics and Physics of Solids, 179:105367, 2023.

J. Yang, A. Rida, Y. Gu, D. Magagnoscc, T.A. Zakia, J.A. El-Awady, “The three-dimensional elastodynamic solution for dislocation plasticity and its implementation in discrete dislocation dynamics simulations”, Acta Materialia, 253:118945, 2023.

L. Frérot, A. Crespo, J.A. El-Awady, M.O. Robbins, J. Cayer-Barrioz, D. Mazuyer, “From Molecular to Multiasperity Contacts: How Roughness Bridges the Friction Scale Gap”, ACS Nano, 17(3):2205-2211, 2023.

K.A. El-Awady, S. Lavenstein, J.A. El-Awady, “Three-dimensional surface displacement tracking for in-situ experiments: An alternative to digital image correlation (DIC)”, Scripta Materialia, 224:115120, 2023.

D. Nepal, T. Bunning, K.T. Kremer, N. Kotov, S. Keten, G. Schatz, M. Bockstaller, K. Dayal, R. Dauskardt, C. Brinson, L. Henderson, B. Yacobson, P. Coveney, S. Vignolini, F. Vollrath, D. Kaplan, M. Buehler, J.A. El-Awady, K. Adstedt, S. Kang, V. Tsukruk, H. Heinz, “Hierarchically structured bioinspired nanocomposites”, Nature Materials, 22:18-35, 2023.

2022

Y. Zhang, K. Ding, Y. Gu, W. Chen, Y.M. Wang, J.A. El-Awady, D.L. McDowell, T. Zhu, “Modeling of microscale internal stresses in additively manufactured stainless steel”, Modelling and Simulation in Materials Science and Engineering, 30 (7), 074001, 2022.

D. Singh, S.I. Rao, J.A. El-Awady, “Atomistic simulations and theoretical modelling of dislocation slip and yield response of industrial Tantalum alloys”, Materialia, 23:101429, 2022.

M. Sudmanns, A. Birnbaum, Y. Gu, A. Iliopoulos, J. Michopoulos, J.A. El-Awady, “The interplay of local chemistry and plasticity in controlling microstructure formation during laser powder bed fusion of metals”, Additive Manufacturing, 55:102791, 2022.

W. Li, X. Peng, A.H.W. Ngan, J.A. El-Awady, “Surface energies and relaxation of NiCoCr and NiFeX (X=Cu, Co or Cr) equiatomic multiprincipal element alloys from first principles calculations”, Modelling and Simulation in Materials Science and Engineering, 30:025001, 2022.

M. Omar, J.A. El-Awady, “Foreseeing metal failure from its inception”, Science, 377(6610):1047-1048, 2022.

A. Rida, S.I. Rao, J.A. El-Awady, “Characterization of <a> screw dislocations and their slip on prismatic planes in pure hexagonal a-titanium from atomistic simulations”, Materialia, 24:101503 2021.

2021

M. Sudmanns, J.A. El-Awady, “The effect of local chemical ordering on dislocation activity in multi-principle element alloys: A three-dimensional discrete dislocation dynamics study”, Acta Materialia, 220:117307, 2021.

Q. Wei, K.T. Ramesh, T.C. Hufnagel, J. Wilkerson, J.A. El-Awady, J. Kimberley, B. Ravaji, S.P. Joshi, “Insights from the MEDE program: An overview of microstructure-property linkages in the dynamic behaviors of magnesium alloys”, Mechanics of Materials, 104084, 2021.

C. Zhu, D. Madisetti, J.A. El-Awady, M. De Graef, “Virtual Electron Backscatter Diffraction for Multiscale Defect Characterization”, Microscopy and Microanalysis, 27 (S1), 1458-1459, 2021.

H. Fan, Q. Wang, J.A. El-Awady, D. Raabe, M. Zaiser, “Strain rate dependency of dislocation plasticity”, Nature Communications, 12, 1845, 2021.

Q. Jiao, J. Cheng, G.-D. Sim, S. Ghosh, J.A. El-Awady, “Micro-mechanical investigation of the thermo-mechanical properties of micro-architectured tungsten coatings”, Journal of the Mechanics and Physics of Solids, 150, 104326,2021.

Y. Gu, D.W. Eastman, K.J. Hemker, J.A. El-Awady, “A statistical model for size effects on the yield strength in dislocation-mediated crystal plasticity”, Journal of the Mechanics and Physics of Solids, 147, 104245, 2021.

Y. Gu, J.C. Stinville, P.G. Callahan, M.L.P. Echlin, T.M. Pollock, J.A. El-Awady, “Slip Delocalization and Diffusion Mediated Carbide Formation during Fatigue of a Nickel-Base Superalloy”, International Journal of Fatigue, 145, 106077, 2021.

K.Y. Xie, D. Zhao, B. Leu, X. Ma, Q. Jiao, J.A. El-Awady, T.P. Weihs, I.J. Beyerlein, “Understanding the interaction of extension twinning and basal-plate precipitates in Mg-9Al using precession electron diffraction”, Materialia, 15, 101044, 2021.

2020

X. Wu, A. Aramoon, J.A. El-Awady, “Hierarchical Multiscale Approach for Modeling the Deformation and Failure of Epoxy-Based Polymer Matrix Composites”, The Journal of Physical Chemistry – B, 124(52), 11928–11938, 2020.

J. Tessmer, S. Singh, Y. Gu, J.A. El-Awady, M. De Graef, “Scanning transmission electron microscopy image simulations of complex dislocation structures generated by discrete dislocation dynamics”, Ultramicroscopy, 219, 113124, 2020.

M.H. Rafiei, Y. Gu, J.A. El-Awady, “Machine Learning of Dislocation-Induced Stress Fields and Interaction Forces”, JOM, 1-13, 2020.

J. Alcalá, J. Očenášek, J. Varillas, J.A. El-Awady, J.M. Wheeler, J. Michler, “Statistics of dislocation avalanches in FCC and BCC metals: dislocation mechanisms and mean swept distances across microsample sizes and temperatures”, Scientific Reports, 10, 19024, 2020.

F. Wang, Y. Gu, R.J. McCabe, L. Capolungo, J.A. El-Awady, S.R. Agnew, “ dislocation in  twins in Mg: A kinematic and energetic requirement”, Acta Materialia, 195, 13-24, 2020.

X. Ma, Q. Jiao, L.J. Kecskes, J.A. El-Awady, T. Weihs, “Effect of Basal Precipitates on Extension Twinning and Pyramidal Slip: A Micro-mechanical and Electron Microscopy Study of a Mg-Al Binary Alloy”, Acta Materialia, 189, 35-46, 2020.

Y. Gu, J.A. El-Awady, “Theoretical framework for predicting solute concentrations and solute-induced stresses in finite volumes with arbitrary elastic fields”, Materials Theory, (Invited Article), 4(1), 1-22, 2020.

W. Liu, S.I. Rao, H. Fan, Q.Y. Wang, J.A. El-Awady, “Core structure and mobility of edge dislocations in face-centered-cubic chemically complex NiCoFe and NiCoFeCu equiatomic solid-solution alloys”, Materialia, 9, 100628, 2020.

S. Lavenstein, Y. Gu, D. Madisetti, J.A. El-Awady, “The heterogeneity of persistent slip band nucleation and evolution in metals at the micron scale”, Science, 370:6513, eabb2690, 2020.

2019

S. Lavenstein, J.A. El-Awady, “Micro-scale fatigue mechanisms in metals: Insights gained from small-scale experiments and discrete dislocation dynamics simulations”, Current Opinion in Solid State & Materials Science, (Invited Article), 23(5):100765, 2019.

G.-D. Sim, K. Xie, K.J. Hemker, J.A. El-Awady, “Effect of temperature on the transition in deformation modes in Mg single crystals”, Acta Materialia, 178:214-248, 2019.

R. Plamthottam, S. Lavenstein,J.A. El-Awady, “Effect of temperature on the suppression of twinning in textured magnesium”, MRS Communications, 9:1093-1097, 2019.

W. Li, H. Fan, J. Tang, Q. Wang, X. Zhang, J.A. El-Awady, “Effects of alloying on deformation twinning in high entropy alloys”, Materials Science and Engineering: A, 763:138143, 2019.

S. Xu, M.I. Latypov, J.A. El-Awady, I.J. Beyerlein, “Intrinsic and extrinsic size effects in materials”, Journal of Materials Research, 34(13):2147-2147, 2019.

I.J. Beyerlein, S. Xu, J. Llorca, J.A. El-Awady, J.R. Mianroodi, B. Svendsen, “Alloy design for mechanical properties: Conquering the length scales”, MRS Bulletin, 44(4):257-265 2019.

K. Srivastava, J.A. El-Awady, “The effect of the orientation of second-order pyramidal <c + a> dislocations on plastic flow in Magnesium”, Magnesium Technologies, 2019, 305-310, 2019.

H. Fan, J.A. El-Awady, “Hardening effects of precipitates with different shapes on the twinning in magnesium alloys”, Magnesium Technologies 2019, 257-261, 2019.

S.I. Rao, C. Woodward, B. Akdim, E. Antillon, T. Parthasarathy, J.A. El-Awady, D.M. Dimiduk, “Large Scale Dislocation Dynamics simulations of strain hardening of Ni microcrystals under tensile loading”, Acta Materialia, 164:171-183, 2019.

2018

K. Srivastava, J.A. El-Awady, “Unveiling the role of super-jogs and dislocation induced atomic-shuffling on controlling plasticity in magnesium”, Acta Materialia, 161:182-193, 2018.

J. Zhang, Y. Zhang, J.A. El-Awady, Y. Tang, “The plausibility of <c + a> dislocation slip on planes in Mg”, Scripta Materialia, 156:19-22, 2018.

Y. Gu, Y. Xiang, D.J. Srolovitz, J.A. El-Awady, “Self-healing of low angle grain boundaries by vacancy diffusion and dislocation climb”, Scripta Materialia, 155:155-159, 2018.

M. Hamza, M.A. Hindy, T.M. Hatem, J.A. El-Awady, “Impact of angular deviation from coincidence site lattice grain boundaries on hydrogen segregation and diffusion in α-iron”, MRS Communications, 8:1197-1203, 2018.

H. Fan, A.H.W. Ngan, K. Gan, J.A. El-Awady, “Origin of double-peak precipitation hardening in metallic alloys”, International Journal of Plasticity, 111:152-167, 2018.

M.A. Hindy, T. Hatem, J.A. El-Awady, “Atomistic Simulations of Carbon and Hydrogen Diffusion and Segregation in Alfa-Iron Deviant CSL Grain Boundaries”, MRS Advances, 1-6, doi:10.1557/adv.2018.452, 2018.

H. Fan, Y. Zhu, J.A. El-Awady, D. Raabe, “Precipitation hardening effects on extension twinning in magnesium alloys”, International Journal of Plasticity, 106:186-202, 2018.

Y. Gu, J.A. El-Awady, “Quantifying the effect of hydrogen on dislocation dynamics: A three-dimensional discrete dislocation dynamics framework”, Journal of the Mechanics and Physics of Solids, 112:491-507, 2018.

Q. Jiao, G.-D. Sim, M. Komarasamy, P.K. Liaw, R. Mishra, J.A. El-Awady, “Mechanical behavior of single-phase, face-center-cubic AlxCoCrFeNi HEA microcrystals at elevated temperatures”, Materials Research Letters, 6(5):300-306, 2018.

S. Lavenstein, G.-D. Sim, B. Crawford, P.A. Shade, C. Woodward, J.A. El-Awady, “High frequency in situ fatigue response of Ni-base superalloy René-N5 microcrystals”, Acta Materialia, 144:154-163, 2018.

G.-D. Sim, G. Kim, S. Lavenstein, M.H. Hamza, H. Fan, J.A. El-Awady, “Anomalous Hardening in Magnesium Driven by a Size-Dependent Transition in Deformation Modes”, Acta Materialia, 144:11-20, 2018.

2017

Q. Jiao, G.-D. Sim, H. Fan, J.A. El-Awady, “Micro-Mechanical Characterization of Micro-Architectured Tungsten Coating”, Materials Science and Engineering: A, 705:366-375, 2017.

A. Aramoon, T.D. Breitzman, C. Woodward, J.A. El-Awady, “Correlating Free-Volume Hole Distribution to the Glass Transition Temperature of Epoxy Polymers”, The Journal of Physical Chemistry – B, 121(35):8399-8407, 2017.

K. Srivastava, J.A. El-Awady, “Deformation in magnesium during c-axis compression at low temperatures”, Acta Materialia, 133:282-292, 2017.

H. Fan, J. Tang, X. Tian, Y. Zhu, X. Tian, J.A. El-Awady, “Core Structures and Mobility of <c> Dislocations in Magnesium”, Scripta Materialia, 135:37-40, 2017.

A.M. Hussein, S.I. Rao, M.D. Uchic, T.A. Parthasarathay, J.A. El-Awady, “The Strength and Dislocation Microstructure Evolution in Superalloy Microcrystals”, Journal of the Mechanics and Physics of Solids, 99:146–162, 2017.

H. Fan, Q. Wang, X. Tian, J.A. El-Awady, Temperature effects on the mobility of pyramidal <c+a> dislocations in magnesium, Scripta Materialia, 127:68-71, 2017.

2016

A. Aramoon, T.D. Breitzman, C. Woodward, J.A. El-Awady, “Free-Volume evolution in Epoxy polymers: A coarse-grained molecular dynamics study”, The Journal of Physical Chemistry – B, 120:9495-9505, 2016.

A.M. Hussein, J.A. El-Awady, “Quantifying Dislocation Microstructure Evolution and Cyclic Hardening in Fatigued Nickel Single-Crystals”, Journal of the Mechanics and Physics of Solids, 91:126–144, 2016.

A.M. Hussein, J.A. El-Awady, “Surface Roughness Evolution during Early Stages of Mechanical Cyclic Loading”, International Journal of Fatigue, 87:339–350, 2016.

H. Fan, S. Aubry, A. Arsenlis, J.A. El-Awady, “Grain size effects on dislocation and twinning mediated plasticity in magnesium”, Scripta Materialia, 112:50–53, 2016.

2015

J.A. El-Awady, “Unraveling the Physics of Size Dependent Dislocation Mediated Plasticity”, Nature Communications, 6:5926, 2015.

S.I. Rao, D.M. Dimiduk, J.A. El-Awady, T.A. Parthasarathy, M.D. Uchic, C. Woodward, “Screw dislocation cross slip at cross-slip plane jogs and screw dipole annihilation in FCC Cu and Ni investigated via atomistic simulations”, Acta Materialia, 101:10–15, 2015.

H. Fan, J.A. El-Awady, “Towards resolving the anonymity of pyramidal slip in magnesium”, Materials Science and Engineering: A, 644:318–324, 2015.

H. Fan, J.A. El-Awady, “Molecular dynamics simulations of the tension, compression and bending deformations of magnesium nano-crystals”, Journal of Applied Mechanics, 82(10):101006, 2015.

M. Wagih, Y. Tang, T. Hatem, J.A. El-Awady, “Discerning Enhanced Dislocation Plasticity in Hydrogen-Charged α-Iron Nano-Crystals”, Materials Research Letters, 3:184–189, 2015.

H. Fan, S. Aubry, A. Arsenlis, J.A. El-Awady, “The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations”, Acta Materialia, 92:126–139, 2015.

H. Fan, J.A. El-Awady, Q. Wang, “Towards further understanding of stacking fault tetrahedron absorption and defect-free channels – a molecular dynamics study”, Journal of Nuclear Materials, 458:176–186, 2015.

Z. Aitken, H. Fan, J.A. El-Awady, J.R. Greer, “The Effect of Size, Orientation and Alloying on the Deformation of Mg Nanopillars”, Journal of the Mechanics and Physics of Solids, 76:208–223, 2015.

A.M. Hussein, S.I. Rao, D.M. Dimiduk, M.D. Uchic, J.A. El-Awady, “Microstructurally-Based Cross-Slip Mechanisms and their Effects on Dislocation Microstructure Evolution in FCC Crystals”, Acta Materialia, 85:180–190, 2015.

H. Fan, S. Aubry, A. Arsenlis, J.A. El-Awady, “Orientation influence on grain size effects in ultrafine-grained magnesium”, Scripta Materialia, 97:25–28, 2015.

2014

Y. Tang, J.A. El-Awady, “Highly Anisotropic Slip-behavior of Pyramidal I <c+a> Dislocations in Hexagonal Close-Packed Magnesium”, Material Science and Engineering A, 618:424–432, 2014.

Y. Tang, J.A. El-Awady, “Formation and slip of pyramidal dislocations in hexagonal close-packed magnesium single crystals”, Acta Materialia, 71:319–332, 2014.

2013

S.I. Rao, D.M. Dimiduk, J.A. El-Awady, T.A. Parthasarathy, M.D. Uchic, C. Woodward, “Spontaneous athermal cross-slip nucleation at screw dislocation intersections in FCC metals and L12 intermetallics investigated via atomistic simulations”, Philosophical Magazine, 93(22):3012-3028, 2013.

J.A. El-Awady, M.D. Uchic, P.A. Shade, S.-K. Kim, S.I. Rao, D.M. Dimiduk, C. Woodward, “Pre-Straining Effects on the Power-Law Scaling of Size Dependent Strengthening in Ni Single Crystals” Scripta Materialia., 68(3-4):207–210, 2013.

2012

Y. Tang, J.A. El-Awady, “Atomistic simulations of the interactions of hydrogen with dislocations in FCC metals”,Physical Review B, 86:174102, 2012.

2011

S.I. Rao, D.M. Dimiduk, T.A. Parthasarathy, J.A. El-Awady,C. Woodward, M.D. Uchic, “Calculations of Intersection Cross-Slip Activation Energies in FCC Metals Using Nudged Elastic Band Method”,Acta Materialia, 59(19):7135–7144, 2011.

J.A. El-Awady, S.I. Rao, C. Woodward, D.M. Dimiduk, M.D. Uchic, “Trapping and escape of dislocations in micro-crystals with external and internal barriers”, International Journal of Plasticity, 27(3):372–387, 2011.

2010

S.I. Rao, D. Dimiduk, T.A. Parthasarathy, J.A. El-Awady, M.D. Uchic, C. Woodward, “Activated states for cross-slip at screw dislocation intersections in face-centered cubic nickel and copper via atomistic simulation”,Acta Materialia, 58(17):5547–5557, 2010.

J.D. Sethian et al. “The Science and Technologies for Fusion Energy with Lasers and Direct-Drive Targets”, IEEE Transactions on Plasma Sciences, 38(4):690–703, 2010.

2009

S.I. Rao, D. Dimiduk, J.A. El-Awady, T.A. Parthasarathy, M.D. Uchic, C. Woodward, “Atomistic simulations of cross-slip nucleation at screw dislocation intersections in face-centered cubic nickel”, Philosophical Magazine, 89(34–36):3351–3369, 2009.

J.A. El-Awady, C. Woodward, D. Dimiduk, N.M. Ghoniem, “Effects of focused ion beam induced damage on the plasticity of micropillars”, Physical Review B, 80(10):104104, 2009.

J.A. El-Awady, M. Wen, N.M. Ghoniem, “The Role of the Weakest Link Mechanism in Controlling the Plasticity of Micropillars”, Journal of the Mechanics and Physics of Solids, 57(1):32–50, 2009.

H. Kim, J. El-Awady, V. Gupta, N. Ghoniem, S. Sharafat, “Interface Strength Measurement of Hot Isostatic Pressed Tungsten Coatings on F82H Substrates”, Journal of Nuclear Materials, 386–388:863–865, 2009.

2008

J.A. El-Awady, S.B. Biner, N.M. Ghoniem, “A Self Consistent Boundary Element, Parametric Dislocation Dynamics Formulation of Plastic Flow in Finite Volumes”, Journal of the Mechanics and Physics of Solids, 56(5):2019–2035, 2008.

2007

S. Sharafat, J. El-Awady, S. Liu, E. Diegele and N.M. Ghoniem, “Proposed damage evolution model for large-scale finite element modeling of the dual coolant US-ITER TBM”, Journal of Nuclear Materials, 367–370:1337–1343, 2007.

H. Kim, J. El-Awady, J. Quan, S. Sharafat, V. Gupta, N. Ghoniem, “Failure Strength Measurements of VPS Tungsten Coatings for HAPL First Wall Armor”, Fusion Science & Technology, 52(4):875–879, 2007.