Size-dependent energy release rate formulation of notched beams based on a modified couple stress theory

被引：13
|
作者：
Sherafatnia, K. [1 ]
Kahrobaiyan, M. H. [1 ]
Farrahi, G. H. [1 ]
机构：
[1] Sharif Univ Technol, Sch Mech Engn, Tehran, Iran
来源：
ENGINEERING FRACTURE MECHANICS | 2014年 / 116卷
关键词：
Energy release rate; Modified couple stress theory; Size dependency; Notched beam; FRACTURE-TOUGHNESS; CONCRETE; MODEL; SIMULATIONS; PLASTICITY; VIBRATION; STRENGTH; LENGTH;
D O I：
10.1016/j.engfracmech.2013.12.001
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The modified couple stress theory is employed in this paper in order to formulate the size-dependent strain energy release rate of Euler-Bernoulli and Timoshenko notched beams. As a case study, the normalized energy release rate of the aforementioned beams has been developed for three-point bending as a function of the ratio of material length scale parameter to the beam depth. The results of the current model are compared to the experimental data. The good agreement between the present results and the experimental values indicates that the current model can be successfully applied to evaluate size dependent energy release rate of structures. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：80 / 91
页数：12
相关论文
共 50 条
  • [1] Size dependent energy release rate of notched FGM beams based on a modified couple stress theory
    Maleki, Erfan
    Sherafatnia, Khalil
    Farrahi, Gholam Hossein
    [J]. MATERIALS TODAY-PROCEEDINGS, 2016, 3 (08) : 2662 - 2671
  • [2] Size-Dependent Analysis of Strain Energy Release Rate of Buckling Delamination Based on the Modified Couple Stress Theory
    He, Siyu
    Tang, Feixiang
    Liu, Xiuming
    Gao, Zhongjie
    Dong, Fang
    Liu, Sheng
    [J]. ACTA MECHANICA SOLIDA SINICA, 2024,
  • [3] Comments on "Size-dependent energy release rate formulation of notched beams based on a modified couple stress theory'' by Sherafatnia et al. [Engng. Fract. Mech. 116 (2014) 80-91]
    Homayounfard, M.
    Daneshmehr, A. R.
    [J]. ENGINEERING FRACTURE MECHANICS, 2015, 141 : 120 - 123
  • [4] A SIZE-DEPENDENT BEAM ELEMENT BASED ON THE MODIFIED COUPLE STRESS THEORY
    Kahrobaiyan, M. H.
    Khajehpour, M.
    Ahmadian, M. T.
    [J]. PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2011, VOL 8, 2012, : 591 - 597
  • [5] A size-dependent zigzag model for composite laminated micro beams based on a modified couple stress theory
    Yang, Wanli
    He, Dan
    Chen, Wanji
    [J]. COMPOSITE STRUCTURES, 2017, 179 : 646 - 654
  • [6] Size-dependent nonlinear dynamics of a microbeam based on the modified couple stress theory
    Ding, Nan
    Xu, Xu
    Zheng, Zhuoqun
    Li, Eric
    [J]. ACTA MECHANICA, 2017, 228 (10) : 3561 - 3579
  • [7] Size-Dependent Postbuckling of Piezoelectric Microbeams Based on a Modified Couple Stress Theory
    Li, Xingjia
    Luo, Ying
    [J]. INTERNATIONAL JOURNAL OF APPLIED MECHANICS, 2017, 9 (04)
  • [8] Size-dependent nonlinear dynamics of a microbeam based on the modified couple stress theory
    Nan Ding
    Xu Xu
    Zhuoqun Zheng
    Eric Li
    [J]. Acta Mechanica, 2017, 228 : 3561 - 3579
  • [9] On size-dependent Timoshenko beam element based on modified couple stress theory
    Dehrouyeh-Semnani, Amir Mehdi
    Bahrami, Arian
    [J]. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 2016, 107 : 134 - 148
  • [10] Development of size-dependent consistent couple stress theory of Timoshenko beams
    Alavi, Seyed Ehsan
    Sadighi, Mojtaba
    Pazhooh, Mitra Danesh
    Ganghoffer, Jean-Francois
    [J]. APPLIED MATHEMATICAL MODELLING, 2020, 79 : 685 - 712
12345