Peridynamic Model for Microballistic Perforation of Multilayer Graphene
Journal Article
·
· Theoretical and Applied Fracture Mechanics
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- U.S. Army Research Lab., Aberdeen Proving Ground, MD (United States)
The peridynamic theory of solid mechanics is applied to the continuum modeling of the impact of small, high-velocity 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. Here, 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.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- OSTI ID:
- 1770357
- Report Number(s):
- SAND-2021-2383J; 694393
- Journal Information:
- Theoretical and Applied Fracture Mechanics, Vol. 113; ISSN 0167-8442
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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