Steel and Composite Structures

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Post-buckling responses of functionally graded beams with porosities

  • Akbas, Seref D. (Department of Civil Engineering, Bursa Technical University, Yildirim Campus)
  • Received : 2017.02.16
  • Accepted : 2017.05.16
  • Published : 2017.08.10
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Abstract

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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References

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