Stud y of the transverse electric field effect s on elastic modulu s of nanotubes by density function al theory

The m echanical properties of nanotubes such as carbo n nanotubes and boron nitride nano tubes have been the subject of m any researches in the nanotechnology field. The theoretical approaches as well as experi mental studies have been applied at the same. In fact, the e lastic properties have been investigated usi ng theoreti cally approaches base d on continuum mecha nics, molec ular mechanics, molecular dynami cs, tight-bi nding and ab initio qua ntum mecha nical approaches. The main object ive of thes e studies, h ave been focused on relation between size and chirality of nanotubes and elastic moduli. In this paper the effec ts of electrical field on the mechanical properties of nanotu bes are stud ied. Thus, from the chemical perspe ctive, changes in chemical properties are cons idered as ju stifications for deviatio ns in the m echanical response of nanotubes.

کلیدواژه ها:

De nsity functi onal theory ، Young’ modulus ، Po isson's ratio ، Electric field ، Nanotubes.