4380

4128

كارشناسي ارشد

طراحي كاربردي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك

1387

دوازده،116،[II]ص:مصور،جدول،نمودار

ص.ع به :فارسي و انگليسي

سعيد ضيايي راد

20/12/1387

محمد رضا فروزان،احمد كرمانپور

1396/09/07

كتابنامه

مهندسي مكانيك

ID4128

به فارسي و انگليسي :قابل رويت در نسخه ديجيتال

Simulation of elastic vibrational and thermal behavior of Single Walled Carbon Nanotubes Zahra Ebrahimzadeh Esfahani Z ebrahimzadeh@me iut ac ir Nov 2008 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran S Ziaie Rad szrad@cc iut ac ir Supervisor F Karimzadeh Adviser Abstract Since discovery of carbon nanotubes these materials have attracted considerable attention in scientific communities because of their remarkable mechanical electrical and thermal properties To use them in a wide range it is necessary to predict their behavior under different situation and loadings In this research using a model based on structural mechanics and finite element methods of CNTs under tensional and torsional loads at different temperatures for undefected and defected structures In addition vibration of clamped CNTs at different temperatures is modeled It is illustrated that elastic and torsional modules of CNTs are in TPa and GPa range respectively Results indicate that vacancy defect has more effect on reduction of CNTs properties In addition by increasing temperature due to weakening bonds between carbon atoms the mechanical properties of CNTs are decreased Key Words Carbon nanotubes Finite Element Structural Mechanics Introduction C arbon Nanotubes CNTs are nanomaterials that have spectacular mechanical physical and thermal properties From mechanical point of view they are the stiffest known materials Nanotubes stiffness is several times of steel stiffness while their weight is only one sixth of the steel weight In addition nanotube electrical conductivity is several times greater than the best conductors Their magnetic susceptibility is greater than many other materials With increasing or decreasing temperature they have a similar behavior to Silisum They are stable up to 3000oC in vacuum Associate Prof Assistant Prof pdfMachine A pdf writer that produces quality PDF files with ease Produce quality PDF files in seconds and preserve the integrity of your original documents Compatible across nearly all Windows platforms simply open the document you want to convert click print select the Broadgun pdfMachine printer and that s it Get yours now

سعيد ضيايي راد

محمد رضا فروزان،احمد كرمانپور