Title of article
Study the Surface Effect on the Buckling of Nanowires Embedded in Winkler–Pasternak Elastic Medium Based on a Nonlocal Theory
Author/Authors
Rahmani، O. نويسنده Smart Structures and New Advanced Materials Laboratory, Mechanical Engineering Department, University of Zanjan, Zanjan, Iran , , Asemani، S.S نويسنده Smart Structures and New Advanced Materials Laboratory, Department of Mechanical Engineering, University of Zanjan, Zanjan , , Hosseini، S. A. نويسنده Astronautic Research Institute, Iranian Space Research Center Hosseini, S. A.
Issue Information
فصلنامه با شماره پیاپی 0 سال 2016
Pages
6
From page
90
To page
95
Abstract
ساختارهاي نانو مانند نانوسيم ها و نانوسيم ها به جهت خواص نوآورانه به طور گسترده اي بررسي شده است. در اين مقاله كمانشنانوسيم احاطه در محيط الاستيك وينكلر - پاسترناك بر اساس مدل اويلر-برنولي غير محلي با توجه به اثرات سطحي بررسي شد. در ادامه به بررسي تاثير پارامترهاي فيزيكي و هندسي متعدد در كمانش نانوسيمپرداخته شده است. نتايج نشان داد كه با رشد نسبت سطح به حجم در اندازه نانو، اثر انرژي سطحي تبديل به پارامترمهم مي شود و بايد در نظر گرفته شود.
Abstract
Nano structures such as nanowires, nanobeams and nanoplates have been
investigated widely for their innovative properties. In this paper the buckling
of nanowires surrounded in a Winkler - Pasternak elastic medium has been
examined based on the nonlocal Euler-Bernoully model with considering the
surface effects. In the following a parametric study that explores the influence
of numerous physical and geometrical parameters on the buckling of nanowires
is presented. It has been shown that by growing the ratio of surface area to
bulk in nano-size structures, the effect of surface energy turn out to be
important and should be taken into consideration. Moreover the results point
out that surface elasticity and residual surface tension stimulus the buckling
behavior of nanowires.
Journal title
Journal of NanoStructures
Serial Year
2016
Journal title
Journal of NanoStructures
Record number
2395858
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