Szczegóły publikacji
Opis bibliograficzny
Peridynamics as an analysis tool for wave propagation in graphene nanoribbons / A. MARTOWICZ, W. J. STASZEWSKI, M. Ruzzene, T. UHL // W: Sensors and smart structures technologies for civil, mechanical, and aerospace systems 2015 : 9–12 March 2015, San Diego, United States / eds. Jerome P. Lynch, Kon-Well Wang, Hoon Sohn. — Bellingham : SPIE, cop. 2015. — (Proceedings of SPIE / The International Society for Optical Engineering ; ISSN 0277-786X ; vol. 9435). — ISBN: 9781628415384. — S. 94350I-1–94350I-8. — Bibliogr. s. 94350I-8, Abstr.
Autorzy (4)
- AGHMartowicz Adam
- AGHStaszewski Wiesław Jerzy
- Ruzzene Massimo
- AGHUhl Tadeusz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 91480 |
|---|---|
| Data dodania do BaDAP | 2015-09-09 |
| DOI | 10.1117/12.2084312 |
| Rok publikacji | 2015 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Konferencja | Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015 |
| Czasopismo/seria | Proceedings of SPIE / The International Society for Optical Engineering |
Abstract
The work is devoted to the study on elastic wave propagation in graphene nanoribbons, performed with peridynamics. Graphene nanoribbons have recently gained dramatic increase of interest in the fields of nanoelectronics and nanoelectromechanical systems. They can play a key role as either modern metallic or semiconductor materials, depending on the edge structure, with zigzag or armchair layout, respectively. Moreover, graphene opens new perspectives for the millimeter wave-based measurements systems. The authors present a peridynamic model used as alternative approach to analyze the dynamic behavior of a graphene nanoribbon. The model is considered as a periodic structure, i.e. an assembly of fundamental structural elements, with the first Brillouin zone under study, which undergoes propagation of elastic wave. The commonly applied auxiliary atomistic-continuum model for a C-C bond is used to set equivalent elastic properties, which are applied to find reference dispersion relation via FE model to study the behavior of the peridynamic model. The paper discusses its capability of recovering the physical nature of the reactions at the atomic scale present in a graphene applying dispersion characteristics. The peridynamic model of the graphene nanoribbon results from upscaling process carried out for a small-scale atomic model, making use of reference dispersion curve. The material properties are homogenized over studied domain indirectly by tuning the phase velocity for longitudinal in-plane elastic waves. As shown, nonlocal nature of peridynamics allows to preserve the lengthscale effect, local small-scale inhomogeneity and wave dispersion. Hence, the effect of spatial discretization at nano scale, arising from the distribution of atoms of carbon in the structure of graphene, may be represented with a nonlocal peridynamic model effectively.
