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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
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.
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页码:579 / 589
页数:11
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