کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5423614 | 1395796 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vibrations in cylindrical shells with transverse elastic isotropy: Application to III-V nitride nanotubes
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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![عکس صفحه اول مقاله: Vibrations in cylindrical shells with transverse elastic isotropy: Application to III-V nitride nanotubes Vibrations in cylindrical shells with transverse elastic isotropy: Application to III-V nitride nanotubes](/preview/png/5423614.png)
چکیده انگلیسی
The vibrational modes of cylindrical shells with transverse elastic isotropy and arbitrary thickness are calculated in the framework of the elasticity theory and a comparison with the isotropic approach is presented. Cylindrical shells are a good model for nanotubes and here an application for nanotubes of transversely isotropic elastic materials is given. We have obtained the expression for the frequency of the radial breathing mode and it is shown that calculated frequencies coming from that expression compare fairly well with those obtained from different ab initio, force constant model calculations and experimental results. Further, the dispersion relations depend on all the elastic coefficients and therefore they are quite different for nanotubes with hexagonal or wurtzite structure. This demonstrates the need to go beyond the isotropic model to investigate the vibrational spectrum of transversely isotropic elastic material nanotubes and nanowires.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 603, Issue 19, 1 October 2009, Pages 2950-2957
Journal: Surface Science - Volume 603, Issue 19, 1 October 2009, Pages 2950-2957
نویسندگان
V.R. Velasco, M.C. Muñoz,