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Analytical Spring-Mass Model of Impact Behavior of Double-Walled Carbon Nanotubes | ||
| Challenges in Nano and Micro Scale Science and Technology | ||
| مقاله 4، دوره 8، شماره 1، اردیبهشت 2020، صفحه 32-38 اصل مقاله (1.36 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22111/tpnms.2019.22515.1135 | ||
| نویسندگان | ||
| Sajjad Seifoori* 1؛ Fatemeh Abbaspour2؛ Ehsan Zamani2 | ||
| 1Mechanical Engineering Dept., Faculty of Engineering, Vali-e-Asr University of Rafsanjan, Iran | ||
| 2Mechanical Engineering Dept., Faculty of Engineering, Shahrekord University, Shahrekord, Iran | ||
| چکیده | ||
| In this study, an impact behavior of spherical striker on a double-walled carbon nanotube (DWCNT) is presented based on a three degree of freedom spring-mass model and the finite element (FE) simulations. The semi-analytical solution of the transverse impact of a striker on a DWCNT is investigated by using the elasticity nonlocal theory of Euler-Bernoulli (EBT) and Timoshenko (TBT) nanobeams. The spring-mass system with spring constant is used that involves shear and bending deformation. The van der Waals (vdW) interaction between two layers of a DWCNT is included in the analytical model. The results of this analysis are compared with the results of the FE simulation. The results from the spring-mass model demonstrated good agreement with FE simulation for various values of a DWCNT dimension, chirality, boundary condition, number of layered and also striker parameters such as mass and velocity. The DWCNT independent of vdW interaction is more flexible than DWCNT with vdW forces. | ||
| کلیدواژهها | ||
| Double-Walled Carbon Nanotube؛ FE simulation؛ Impact؛ spring-mass system | ||
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آمار تعداد مشاهده مقاله: 418 تعداد دریافت فایل اصل مقاله: 442 |
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