Molecular dynamics simulations of ballistic penetration of penta-graphene sheets

Autor(es)

Azevedo, David L. ^{[1, 2, 3, 4]} ; Bizao, Rafael A. ^{[2, 3]} ; Galvao, Douglas S. ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Brasilia, Inst Phys, BR-70910900 Brasilia, DF - Brazil

^[2] Univ Campinas UNICAMP, Appl Phys Dept, BR-13083959 Campinas, SP - Brazil

^[3] Univ Campinas UNICAMP, Ctr Computat Engn & Sci, BR-13083959 Campinas, SP - Brazil

^[4] Univ Brasilia, Planaltina Coll, BR-7334510 Planaltina, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MRS ADVANCES; v. 3, n. 8-9, p. 431-435, 2018.
• Citações Web of Science: 1

Resumo

The search for new materials with low density and superior mechanical properties is a very intense and stimulating investigation area. These new materials could provide potential application for ballistic protection. Recent experiments and simulations revealed graphene possesses exceptional energy absorption properties. In this work, we analysed through fully atomistic molecular dynamics simulations the ballistic performance of a carbon-based material recently proposed named penta-graphene. Our results show that the fracture pattern is more spherical (no petals formation like observed for graphene). The estimated penetration energy for single-layer pentagraphene structures obtained here was d(1penta) similar to 37.7 MJ/kg, and is comparable with recently results obtained for graphene: d(1graphene) similar to 29.0 MJ/kg and d(1graphene) similar to 40.8 MJ/kg under similar conditions. These preliminary results are suggestive that penta-graphene could be an excellent material for ballistic applications. (AU)

• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs