Post-buckling responses of functionally graded beams with porosities

被引：46
|
作者：
Akbas, Seref D. [1 ]
机构：
[1] Bursa Tech Univ, Dept Civil Engn, Yildirim Campus, TR-16330 Yildirim, Bursa, Turkey
来源：
STEEL AND COMPOSITE STRUCTURES | 2017年 / 24卷 / 05期
关键词：
post-buckling; functionally graded material; porosity; total Lagragian; finite element method; FREE-VIBRATION ANALYSIS; TIMOSHENKO BEAMS; FGM BEAMS; NANOPLATE;
D O I：
10.12989/scs.2017.24.5.579
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The objective of this work is to analyze post-buckling of functionally graded (FG) beams with porosity effect under compression load. Material properties of the beam change in the thickness direction according to power-law distributions with different porosity models. It is known that post-buckling problems are geometrically nonlinear problems. In the nonlinear kinematic model of the beam, total Lagrangian finite element model of two dimensional (2-D) continuum is used in conjunction with the Newton-Raphson method. In the study, the effects of material distribution, porosity parameters, compression loads on the post-buckling behavior of FG beams are investigated and discussed with porosity effects. Also, the effects of the different porosity models on the FG beams are investigated in post-buckling case.
引用
收藏
页码：579 / 589
页数：11
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