Quantum mechanics study of the mechanism of deformation and fracture of graphene

In the work, the microscopic mechanisms of uniaxial deformation and fracture of graphene are investigated in the framework of quantum mechanics. The spatial structure of graphene sheet, the heat of its formation and the deformation forces are calculated at the nanoscale level. The deformation and fracture are described by mechanochemical strain coordinates and the deformation forces are calculated as energy gradients of the mechanochemical strain coordinates. Using these forces and a conventional macroscopic approach with relations of the linear theory of elasticity, the strain and fracture characteristics of graphene were determined. Despite the clearly defined nanoscopic character of the deformation forces used in calculation of the strain characteristics, the calculation results agree well with available experimental data. © 2009.

Авторы
Yanovsky Yu.G.1 , Nikitina E.A. 1 , Karnet Yu.N.1 , Nikitin S.M. 1, 2, 3
Редакторы
-
Журнал
Издательство
Springer New York LLC
Номер выпуска
5-6
Язык
Английский
Страницы
254-262
Статус
Опубликовано
Подразделение
-
Номер
-
Том
12
Год
2009
Организации
  • 1 Institute of Applied Mechanics RAS, Moscow, 119991, Russian Federation
  • 2 Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, Russian Federation
  • 3 Peoples' Friendship University of Russia, Moscow, 117198, Russian Federation
Ключевые слова
Elastic moduli; Graphene; Quantum mechanics; Strength; Uniaxial deformation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3015/