کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
499751 863058 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The buckling of single-walled carbon nanotubes upon bending: The higher order gradient continuum and mesh-free method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
The buckling of single-walled carbon nanotubes upon bending: The higher order gradient continuum and mesh-free method
چکیده انگلیسی

The bending buckling of single-walled carbon nanotubes (SWCNTs) is studied in the theoretical scheme of the higher order gradient continuum. The deformation of the underlying lattice vectors is approximated with an extended Cauchy–Born rule in which the effect of the second order deformation gradient is considered, and the continuum constitutive responses are determined by minimizing the energy of the representative cell. A mesh-free method is developed to implement the numerical modeling of SWCNTs, and their bending buckling behavior is numerically simulated with the developed method. The results are compared with those obtained with a full atomistic simulation, and it is revealed that the developed mesh-free method can accurately exhibit the bending deformation of SWCNTs. Different types of carbon nanotubes (CNTs) are studied, and the buckling mechanism is investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 197, Issues 33–40, 1 June 2008, Pages 3001–3013
نویسندگان
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