2026-07-28T05:15:13Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:13761 2024-03-06T10:31:15Z ddc:004 open_access

Modeling of Nanoindentation in Ni-Graphene Nanocomposites: A Molecular Dynamics Sensitivity Study Vardanyan, Vardan Hoviki Urbassek, Herbert M. molecular dynamics nickel-graphene composites dislocations nanoindentation Using molecular dynamics simulation, we perform nanoindentation simulations on a Ni-graphene model system, in which a graphene flake coats the grain boundary of a Ni bi-crystal. Material strengthening or weakening by inclusion of graphene is discussed with the help of the force needed to indent to a specified depth. By varying the depth of the graphene flake with respect to the indentation depth we identify the distance up to which graphene influences the indentation behavior. In addition, we vary the details of the modeling of the graphene flake in the matrix metal and determine their influence on the performance of the nanocomposite. Our results indicate that the modeling results are robust against variations in the modeling of the graphene flake. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Vardan Hoviki Vardanyan and Herbert M. Urbassek 2021 Is Part Of OASIcs, Volume 89, 2nd International Conference of the DFG International Research Training Group 2057 – Physical Modeling for Virtual Manufacturing (iPMVM 2020) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.iPMVM.2020.12 urn:nbn:de:0030-drops-137614 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.iPMVM.2020.12 eng https://creativecommons.org/licenses/by/4.0/legalcode