Search Results - "Beyerlein, I."

Strength and ductility with {10͞11} — {10͞12} double twinning in a magnesium alloy by Lentz, M., Risse, M., Schaefer, N., Reimers, W., Beyerlein, I. J.

“…Based on their high specific strength and stiffness, magnesium alloys are attractive for lightweight applications in aerospace and transportation, where weight…”
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Understanding dislocation mechanics at the mesoscale using phase field dislocation dynamics by Beyerlein, I. J., Hunter, A.

“…In this paper, we discuss the formulation, recent developments and findings obtained from a mesoscale mechanics technique called phase field dislocation…”
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Radiation damage tolerant nanomaterials by Beyerlein, I.J., Caro, A., Demkowicz, M.J., Mara, N.A., Misra, A., Uberuaga, B.P.

“…Designing a material from the atomic level to achieve a tailored response in extreme conditions is a grand challenge in materials research. Nanostructured…”
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Defect-interface interactions by Beyerlein, I.J., Demkowicz, M.J., Misra, A., Uberuaga, B.P.

“…Nanostructured materials contain an extremely high density of interfaces. The properties of these materials when exposed to extreme conditions of radiation…”
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Grain neighbour effects on twin transmission in hexagonal close-packed materials by Arul Kumar, M., Beyerlein, I. J., McCabe, R. J., Tomé, C. N.

“…Materials with a hexagonal close-packed (hcp) crystal structure such as Mg, Ti and Zr are being used in the transportation, aerospace and nuclear industry,…”
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Effect of local stress fields on twin characteristics in HCP metals by Arul Kumar, M., Beyerlein, I.J., Tomé, C.N.

“…We study the effect of nearest neighboring grains on the propensity for {1012} twin growth in Mg and Zr. Twin lamellae lying within one grain flanked by two…”
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A dislocation-based constitutive law for pure Zr including temperature effects by Beyerlein, I.J., Tomé, C.N.

“…In this work, a single crystal constitutive law for multiple slip and twinning modes in single phase hcp materials is developed. For each slip mode, a…”
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Stacking fault emission from grain boundaries: Material dependencies and grain size effects by Hunter, A., Beyerlein, I.J.

“…When load is applied to fcc nanograins, leading partial dislocations nucleate at grain boundary steps and propagate into the grain, leaving stacking faults…”
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Reactions of lattice dislocations with grain boundaries in Mg: Implications on the micro scale from atomic-scale calculations by Wang, J, Beyerlein, I J, Tome, C N

“…The reactions of lattice glide dislocations with grain boundaries play a crucial role in the plastic deformation of polycrystalline materials. Recent studies…”
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Atomic-scale study of nucleation of dislocations from fcc–bcc interfaces by Zhang, R.F., Wang, J., Beyerlein, I.J., Misra, A., Germann, T.C.

“…Using atomistic simulations, we reveal the role of the atomic interface structure on the nucleation of glissile dislocations from a low-energy, atomically…”
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Plastic instability mechanisms in bimetallic nanolayered composites by Zheng, S.J., Wang, J., Carpenter, J.S., Mook, W.M., Dickerson, P.O., Mara, N.A., Beyerlein, I.J.

“…Strain localization is a common deformation-induced instability in many metallic metals. How it happens is related to both microstructure and the way in which…”
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Statistical analyses of deformation twinning in magnesium by Beyerlein, I.J., Capolungo, L., Marshall, P.E., McCabe, R.J., Tomé, C.N.

“…To extract quantitative and meaningful relationships between material microstructure and deformation twinning in magnesium, we conduct a statistical analysis…”
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An atomistically-informed dislocation dynamics model for the plastic anisotropy and tension–compression asymmetry of BCC metals by Wang, Z.Q., Beyerlein, I.J.

“…Atomistic simulations have shown that a screw dislocation in body-centered cubic (BCC) metals has a complex non-planar atomic core structure. The configuration…”
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Nucleation and growth of twins in Zr: A statistical study by Capolungo, L., Marshall, P.E., McCabe, R.J., Beyerlein, I.J., Tomé, C.N.

“…An in-depth statistical analysis using electron backscatter diffraction (EBSD) is carried out to expose statistical correlations between { 10 1 ¯ 2 } twinning…”
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Plastic anisotropy in fcc single crystals in high rate deformation by Wang, Z.Q., Beyerlein, I.J., LeSar, R.

“…3D dislocation dynamics (DD) simulations are employed to study the plastic anisotropy of a single crystal of copper under a wide range of high strain rates, 10…”
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A phase field dislocation dynamics model for a bicrystal interface system: An investigation into dislocation slip transmission across cube-on-cube interfaces by Zeng, Y., Hunter, A., Beyerlein, I.J., Koslowski, M.

“…In this work, we present a phase field dislocation dynamics formulation designed to treat a system comprised of two materials differing in moduli and lattice…”
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On the strength of dislocation interactions and their effect on latent hardening in pure Magnesium by Bertin, N., Tomé, C.N., Beyerlein, I.J., Barnett, M.R., Capolungo, L.

“…•Latent hardening coefficients are computed for hexagonal crystals from discrete dislocation dynamics.•The validity of two commonly used hardening law is…”
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Effect of microstructure on the nucleation of deformation twins in polycrystalline high-purity magnesium: A multi-scale modeling study by Beyerlein, I.J., McCabe, R.J., Tomé, C.N.

“…A multi-scale, theoretical study of twin nucleation from grain boundaries in polycrystalline hexagonal close packed (hcp) metals is presented. A key element in…”
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An atomic and probabilistic perspective on twin nucleation in Mg by Wang, J., Beyerlein, I.J., Tomé, C.N.

“…We discuss the nucleation of deformation twins in Mg from a fundamental perspective. Atomistic simulations reveal twinning mechanisms and suggest that twin…”
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Multi-modal Dataset of a Polycrystalline Metallic Material: 3D Microstructure and Deformation Fields by Stinville, J. C., Hestroffer, J. M., Charpagne, M. A., Polonsky, A. T., Echlin, M. P., Torbet, C. J., Valle, V., Nygren, K. E., Miller, M. P., Klaas, O., Loghin, A., Beyerlein, I. J., Pollock, T. M.

“…The development of high-fidelity mechanical property prediction models for the design of polycrystalline materials relies on large volumes of microstructural…”
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