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Molecular dynamics simulations of mechanical behavior in nanoscale ceramic –metallic multilayer composites

Submitted by mohsen.damadam on
Multilayers; nanostructured materials; molecular dynamics; nucleation theory; yield locus
The mechanical behavior of nanoscale ceramic–metallic (NbC/Nb) multilayer composites with dif
ferent 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

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Molecular dynamics simulations of mechanical behavior in nanoscale ceramic metallic multilayer composites.pdf 2.39 MB