A discussion on evaluation of material length scale parameter based on micro-cantilever test

被引：38

作者：

Dehrouyeh-Semnani, Amir Mehdi ^{[1
]}

Nikkhah-Bahrami, Mansour ^{[1
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Mech Engn, Tehran 14174, Iran

来源：

COMPOSITE STRUCTURES | 2015年 / 122卷

关键词：

Micro-cantilever; Euler-Bernoulli beam model; Constitutive beam model; Size effect; Material length scale parameter; Modified couple stress theory; COUPLE STRESS THEORY; FREE-VIBRATION ANALYSIS; STRAIN GRADIENT; ELASTIC MEDIUM; BEAMS; BERNOULLI; MICROSTRUCTURE; BEHAVIOR; MODELS; ELEMENT;

D O I：

10.1016/j.compstruct.2014.11.054

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Modified couple stress Euler-Bernoulli and constitutive beam models have been used to evaluate material length scale parameter based on experimental data extracted from micro-cantilever test. By comparison study, it is indicated that the Euler-Bernoulli beam model is stiffer than the constitutive beam model and therefore the material length scale parameter obtained based on the constitutive beam model is greater than that obtained based on the Euler-Bernoulli beam model. In addition, a relationship between the aforementioned material length scale parameters is presented. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：425 / 429

页数：5

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