Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites
The mechanical behavior of nanoscale ceramic–metallic (NbC/Nb) multilayer composites with different thickness ratios is investigated using molecular dynamics (MD) simulations. Based on the obtained stress–strain behavior and its dependence on temperature, strain rate, and loading path, the flow stre...
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2017-09-01
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Series: | Materials Research Letters |
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Online Access: | http://dx.doi.org/10.1080/21663831.2016.1275864 |
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doaj-188e6b5f5b4742f0bd54edc2f017cde22020-11-25T03:01:11ZengTaylor & Francis GroupMaterials Research Letters2166-38312017-09-015530631310.1080/21663831.2016.12758641275864Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer compositesMohsen Damadam0Shuai Shao1Iman Salehinia2Georges Ayoub3Hussein M. Zbib4Washington State UniversityLouisiana State UniversityNorthern Illinois UniversityTexas A&M UniversityWashington State UniversityThe mechanical behavior of nanoscale ceramic–metallic (NbC/Nb) multilayer composites with different thickness ratios is investigated using molecular dynamics (MD) simulations. Based on the obtained stress–strain behavior and its dependence on temperature, strain rate, and loading path, the flow stress for the onset of plasticity is identified and modeled based on the nucleation theory, and the in-plane yield loci for different layer thicknesses are constructed. The results are used to establish the plastic flow potential for developing a continuum viscoplastic constitutive model for potential use in large-scale applications.http://dx.doi.org/10.1080/21663831.2016.1275864Multilayersnanostructured materialsmolecular dynamicsnucleation theoryyield locus |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohsen Damadam Shuai Shao Iman Salehinia Georges Ayoub Hussein M. Zbib |
spellingShingle |
Mohsen Damadam Shuai Shao Iman Salehinia Georges Ayoub Hussein M. Zbib Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites Materials Research Letters Multilayers nanostructured materials molecular dynamics nucleation theory yield locus |
author_facet |
Mohsen Damadam Shuai Shao Iman Salehinia Georges Ayoub Hussein M. Zbib |
author_sort |
Mohsen Damadam |
title |
Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
title_short |
Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
title_full |
Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
title_fullStr |
Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
title_full_unstemmed |
Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
title_sort |
molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites |
publisher |
Taylor & Francis Group |
series |
Materials Research Letters |
issn |
2166-3831 |
publishDate |
2017-09-01 |
description |
The mechanical behavior of nanoscale ceramic–metallic (NbC/Nb) multilayer composites with different thickness ratios is investigated using molecular dynamics (MD) simulations. Based on the obtained stress–strain behavior and its dependence on temperature, strain rate, and loading path, the flow stress for the onset of plasticity is identified and modeled based on the nucleation theory, and the in-plane yield loci for different layer thicknesses are constructed. The results are used to establish the plastic flow potential for developing a continuum viscoplastic constitutive model for potential use in large-scale applications. |
topic |
Multilayers nanostructured materials molecular dynamics nucleation theory yield locus |
url |
http://dx.doi.org/10.1080/21663831.2016.1275864 |
work_keys_str_mv |
AT mohsendamadam moleculardynamicssimulationsofmechanicalbehaviorinnanoscaleceramicmetallicmultilayercomposites AT shuaishao moleculardynamicssimulationsofmechanicalbehaviorinnanoscaleceramicmetallicmultilayercomposites AT imansalehinia moleculardynamicssimulationsofmechanicalbehaviorinnanoscaleceramicmetallicmultilayercomposites AT georgesayoub moleculardynamicssimulationsofmechanicalbehaviorinnanoscaleceramicmetallicmultilayercomposites AT husseinmzbib moleculardynamicssimulationsofmechanicalbehaviorinnanoscaleceramicmetallicmultilayercomposites |
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