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| Title: | Investigation of pressure sensitive plastic flow in nanoglasses from finite element simulations |
| Authors: | Hirmukhe, S. S. Korimilli, Eswara Prasad Singh, Indrasen |
| Keywords: | Finite element method;Glass;Iron alloys;Metallic glass;Nanoindentation;Scandium alloys;Drucker-Prager;Finite element simulations;Pressure sensitive;Pressure sensitivities;Von-Mises plasticity;Yield behaviors;Yield criteria;Nanoglass |
| Issue Date: | 2020 |
| Publisher: | Acta Materialia Inc |
| Citation: | Hirmukhe, S. S., Prasad, K. E., & Singh, I. (2020). Investigation of pressure sensitive plastic flow in nanoglasses from finite element simulations. Scripta Materialia, 180, 45-50. doi:10.1016/j.scriptamat.2020.01.022 |
| Abstract: | Finite element simulations of indentation on Sc75Fe25 nanoglasses (NGs) and metallic glass (MG) ribbons are performed by employing extended Drucker Prager (EDP) and Von-Mises plasticity model, and pressure sensitive index, α is determined by fitting recent experimental data. It is found that yield behavior of NG is better characterised by pressure sensitive (i.e., EDP) yield criterion. In fact, α for NG is found to be around 120−200, while it is only40−60 for MG ribbon. Further, results show that α for glassy interfaces is much higher than glassy grains of Sc75Fe25 NG. © 2020 Acta Materialia Inc. |
| URI: | https://doi.org/10.1016/j.scriptamat.2020.01.022 https://dspace.iiti.ac.in/handle/123456789/7040 |
| ISSN: | 1359-6462 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Mechanical Engineering |
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