• 文献标题:   Peridynamic model for microballistic perforation of multilayer graphene
  • 文献类型:   Article
  • 作  者:   SILLING SA, FERMENCOKER M
  • 作者关键词:   peridynamic, dynamic fracture, impact, graphene
  • 出版物名称:   THEORETICAL APPLIED FRACTURE MECHANICS
  • ISSN:   0167-8442 EI 1872-7638
  • 通讯作者地址:  
  • 被引频次:   3
  • DOI:   10.1016/j.tafmec.2021.102947 EA APR 2021
  • 出版年:   2021

▎ 摘  要

The peridynamic theory of solid mechanics is applied to the continuum modeling of the impact of small, highvelocity silica spheres on multilayer graphene targets. The model treats the laminate as a brittle elastic membrane. The material model includes separate failure criteria for the initial rupture of the membrane and for propagating cracks. Material variability is incorporated by assigning random variations in elastic properties within Voronoi cells. The computational model is shown to reproduce the primary aspects of the response observed in experiments, including the growth of a family of radial cracks from the point of impact.