Influence of Strain Rate on the Compressive Behavior of Heterogeneous Cu/Ta Multilayer: A Molecular Dynamics Simulation Study
SSRN, ISSN: 1556-5068
2023
- 107Usage
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Atomistic simulations are performed to study the compressive response of heterogeneous Cu/Ta multilayer at a wide range of strain rates. The results show that the yield strength and yield strain both increase with the increasing strain rate while the elastic modulus essentially remains invariant. The yield strength increases sharply when the strain rate exceeds the critical value of 10^9 S^-1. The yield of the sample at lower strain rate is primarily determined by the dislocation evolution in the hard phase (i.e. Ta layers), while dominated by the atomic amorphization of hard phase at higher strain rate. We show that the heterogeneous nanolayered composite exhibits a good deformation compatibility at lower strain rate but an obvious deformation incompatibility at higher strain rate.
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