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A theoretical consideration of the ballistic response of continuous graphene membranes.
- Source :
-
Journal of the Mechanics & Physics of Solids . Sep2015, Vol. 82, p23-31. 9p. - Publication Year :
- 2015
-
Abstract
- The remarkable properties of graphene, including unusually high mechanical strength and stiffness, have been well-documented. In this paper, we combine an analytical solution for ballistic impact into a thin isotropic membrane, with ab initio density functional theory calculations for graphene under uniaxial tension, to predict the penetration resistance of multi-layer graphene membranes. The calculations show that continuous graphene membranes could enable ballistic barriers of extraordinary performance, enabling resistance to penetration at masses up to 100× lighter than existing state-of-the-art barrier materials. The very high elastic wave speed and strain energy to failure are the major drivers of this increase in performance. However, the in-plane mechanical isotropy of graphene, as compared to conventional orthotropic woven textiles, also contributes significantly to the efficiency of graphene as a barrier material. This result suggests that, for barrier applications, isotropic membranes composed of covalently bonded two-dimensional molecular networks could provide distinct advantages over fiber-based textiles derived from linear polymers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00225096
- Volume :
- 82
- Database :
- Academic Search Index
- Journal :
- Journal of the Mechanics & Physics of Solids
- Publication Type :
- Periodical
- Accession number :
- 109164487
- Full Text :
- https://doi.org/10.1016/j.jmps.2015.05.008