High-Rate Crystal/Polycrystal Dislocation Dynamics
The present report builds upon work recently published on crystal and polycrystal dislocation mechanics behaviors assessed, in part, in split-Hopkinson pressure bar (SHPB) and shock loading investigations. A connection between the flow stress dependencies on strain rate in the different tests had be...
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Published in | Crystals (Basel) Vol. 12; no. 5; p. 705 |
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Main Author | |
Format | Journal Article |
Language | English |
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Basel
MDPI AG
16.05.2022
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Abstract | The present report builds upon work recently published on crystal and polycrystal dislocation mechanics behaviors assessed, in part, in split-Hopkinson pressure bar (SHPB) and shock loading investigations. A connection between the flow stress dependencies on strain rate in the different tests had been established in the previous report, whereas additional results are assessed here for (1) relationship of the measurements to a nano-scale prismatic dislocation structure proposed to be generated at a propagating shock front and (2) further relationships between the modeled structure and corresponding thermal stress and strain rate sensitivity computations, including new evaluations of the engineering rate sensitivity parameter, m = [∆lnσ/∆ln(dε/dt)]T. A comparison is made of m values approaching 1.0 for simulated dislocation mechanics results computed for tantalum crystals. Other (lower) m value comparisons involve recently determined higher shock stress measurements made on copper material at higher temperatures. |
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AbstractList | The present report builds upon work recently published on crystal and polycrystal dislocation mechanics behaviors assessed, in part, in split-Hopkinson pressure bar (SHPB) and shock loading investigations. A connection between the flow stress dependencies on strain rate in the different tests had been established in the previous report, whereas additional results are assessed here for (1) relationship of the measurements to a nano-scale prismatic dislocation structure proposed to be generated at a propagating shock front and (2) further relationships between the modeled structure and corresponding thermal stress and strain rate sensitivity computations, including new evaluations of the engineering rate sensitivity parameter, m = [∆lnσ/∆ln(dε/dt)]T. A comparison is made of m values approaching 1.0 for simulated dislocation mechanics results computed for tantalum crystals. Other (lower) m value comparisons involve recently determined higher shock stress measurements made on copper material at higher temperatures. |
Author | Armstrong, Ronald W. |
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CitedBy_id | crossref_primary_10_3390_met12081300 crossref_primary_10_3390_cryst13030490 |
Cites_doi | 10.1103/PhysRevB.47.11681 10.1115/1.4052104 10.1007/s11661-004-0206-5 10.1038/s43246-020-00090-2 10.1103/PhysRevB.88.134101 10.1063/1.3067764 10.1016/j.mechmat.2015.01.009 10.1016/j.msea.2006.09.118 10.1016/j.ijimpeng.2021.103896 10.1063/1.336184 10.1007/s11661-007-9142-5 10.1016/j.ijplas.2015.07.007 10.1063/5.0075916 10.1063/1.1658110 10.1103/PhysRevB.46.3228 10.1063/1.359954 10.1016/j.msea.2018.09.018 10.1063/5.0021212 |
ContentType | Journal Article |
Copyright | 2022 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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References | Mao (ref_21) 2018; 738 Agnihotri (ref_17) 2015; 90 Jia (ref_3) 2021; 154 Bandak (ref_12) 1992; 46 Lea (ref_2) 2020; 1 ref_23 Armstrong (ref_4) 2007; 38 Hirth (ref_10) 2009; Volume 15 Shehadeh (ref_20) 2022; 144 ref_1 Bandak (ref_13) 1993; 47 Armstrong (ref_8) 1973; 32 Ravelo (ref_9) 2013; 88 Zaretsky (ref_16) 1995; 78 Jarmakani (ref_18) 2007; 463 Kanel (ref_22) 2020; 128 Armstrong (ref_6) 2021; 130 Trueb (ref_11) 1969; 40 Germann (ref_15) 2004; 35 Swegle (ref_5) 1985; 58 Armstrong (ref_14) 2009; 105 ref_7 Luscher (ref_19) 2016; 76 |
References_xml | – ident: ref_7 – volume: 47 start-page: 11681 year: 1993 ident: ref_13 article-title: Formation of nanodislocation dipoles in shock-compressed crystals publication-title: Phys. Rev. B doi: 10.1103/PhysRevB.47.11681 contributor: fullname: Bandak – volume: 144 start-page: 11015 year: 2022 ident: ref_20 article-title: Dislocation mechanics of extremely high rate deformations in iron and tantalum publication-title: ASME J. Eng. Mater. Technol. doi: 10.1115/1.4052104 contributor: fullname: Shehadeh – volume: 35 start-page: 2609 year: 2004 ident: ref_15 article-title: Dislocation structure behind a shock front in fcc perfect crystals: Atomistic simulation results publication-title: Metall. Mater. Trans. A doi: 10.1007/s11661-004-0206-5 contributor: fullname: Germann – volume: 1 start-page: 93 year: 2020 ident: ref_2 article-title: Time limited self-organized criticality in the high rate deformation of face centered cubic metals publication-title: Comm. Mater. doi: 10.1038/s43246-020-00090-2 contributor: fullname: Lea – volume: 88 start-page: 134101 year: 2013 ident: ref_9 article-title: Shock-induced plasticity in tantalum single crystals: Interatomic potentials and large-scale molecular-dynamics simulations publication-title: Phys. Rev. B doi: 10.1103/PhysRevB.88.134101 contributor: fullname: Ravelo – volume: 105 start-page: 023511 year: 2009 ident: ref_14 article-title: Dislocation mechanics of copper and iron in high rate deformation tests publication-title: J. Appl. Phys. doi: 10.1063/1.3067764 contributor: fullname: Armstrong – volume: 32 start-page: 591 year: 1973 ident: ref_8 article-title: Thermal activation strain rate analysis (TASRA) for polycrystalline metals publication-title: J. Sci. Indust. Res. contributor: fullname: Armstrong – volume: 90 start-page: 37 year: 2015 ident: ref_17 article-title: On the rate sensitivity in discrete dislocation plasticity publication-title: Mech. Mater. doi: 10.1016/j.mechmat.2015.01.009 contributor: fullname: Agnihotri – volume: 463 start-page: 249 year: 2007 ident: ref_18 article-title: Dynamic response of single crystalline copper subjected to quasi-isentropic, gas-gun driven loading publication-title: Mater. Sci. Eng. A doi: 10.1016/j.msea.2006.09.118 contributor: fullname: Jarmakani – volume: 154 start-page: 103896 year: 2021 ident: ref_3 article-title: Simple shear behavior and constitutive modeling of 304 stainless steel over a wide range of strain rates and temperatures publication-title: Int. J. Impact Eng. doi: 10.1016/j.ijimpeng.2021.103896 contributor: fullname: Jia – ident: ref_1 – volume: 58 start-page: 692 year: 1985 ident: ref_5 article-title: Shock viscosity and the prediction of shock wave rise times publication-title: J. Appl. Phys. doi: 10.1063/1.336184 contributor: fullname: Swegle – volume: Volume 15 start-page: 92 year: 2009 ident: ref_10 article-title: Dislocations in Shock Compression and Release publication-title: Dislocations in Solids contributor: fullname: Hirth – volume: 38 start-page: 2605 year: 2007 ident: ref_4 article-title: Dislocation mechanics of shock-induced plasticity publication-title: Metall. Mater. Trans A doi: 10.1007/s11661-007-9142-5 contributor: fullname: Armstrong – ident: ref_23 – volume: 76 start-page: 111 year: 2016 ident: ref_19 article-title: Coupling continuum dislocation transport with crystal plasticity for application to shock loading conditions publication-title: Int. J. Plast. doi: 10.1016/j.ijplas.2015.07.007 contributor: fullname: Luscher – volume: 130 start-page: 245103 year: 2021 ident: ref_6 article-title: Constitutive relations for slip and twinning in high rate deformations; A review and update publication-title: J. Appl. Phys. doi: 10.1063/5.0075916 contributor: fullname: Armstrong – volume: 40 start-page: 2976 year: 1969 ident: ref_11 article-title: Electron–microscope study of thermal recovery processes in explosion-shocked nickel publication-title: J. Appl. Phys. doi: 10.1063/1.1658110 contributor: fullname: Trueb – volume: 46 start-page: 3228 year: 1992 ident: ref_12 article-title: Dislocation structure for one-dimensional strain in a shocked crystal publication-title: Phys. Rev. B doi: 10.1103/PhysRevB.46.3228 contributor: fullname: Bandak – volume: 78 start-page: 3740 year: 1995 ident: ref_16 article-title: Dislocation multiplication behind the shock front publication-title: J. Appl. Phys. doi: 10.1063/1.359954 contributor: fullname: Zaretsky – volume: 738 start-page: 430 year: 2018 ident: ref_21 article-title: Opposite grain size dependence of strain rate sensitivity of copper at low vs. high strain rates publication-title: Mater. Sci. Eng. A doi: 10.1016/j.msea.2018.09.018 contributor: fullname: Mao – volume: 128 start-page: 115901 year: 2020 ident: ref_22 article-title: Effects of temperature and strain on the resistance to high-rate deformation of copper in shock waves publication-title: J. Appl. Phys. doi: 10.1063/5.0021212 contributor: fullname: Kanel |
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SubjectTerms | constitutive equation predictions Crystal dislocations dislocation mechanics parameters Experiments Mechanics Mechanics (physics) Parameter sensitivity Polycrystals Sensitivity analysis Shear strain Shear tests Shock loading shock waves in plate impact and gas-gun impact measurements shock-front dislocation model generations Split Hopkinson pressure bars split-Hopkinson pressure bar measurements Strain hardening Strain rate sensitivity strain rate sensitivity parameters Tantalum Thermal stress Yield strength |
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