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Buckling of Sandwich Plates using Layerwise Displacement Model

Izvijanje sendvič ploča primenom slojevitog modela ploče

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2010
Grafar_Cetkovic_Vuksanovic_2010_K.pdf (14.51Mb)
Authors
Ćetković, Marina
Vuksanović, Đorđe
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Abstract
In this paper a layer wise displacement model is used to study buckling of sandwich plates [2]. Mathematical model assumes layer wise description of in plane displacements, constant transverse displacement and quadratic variation of transverse shear stresses within each layer of the plate. Utilizing assumed displacement field, non-linear strain displacement relations (in Von Karman sense) and 3D constitutive equations of lamina, a linear zed buckling plate problem is formulated. A MATLAB computer program was coded for the numerical solution of the problem, using Finite Element Method. The results for buckling loads of sandwich plates, obtained using this program, are compared with the available ones from the literature.
U ovom radu analizirano je izvijanja sendvič ploča primenom slojevitog modela ploče [2]. Matematičkim modelom pretpostavljena je deo po deo linearna raspodela pomeranja u ravni, konstantno poprečno pomeranje i kvadratna promena poprečnih smičućih napona unutar svakog sloja ploče. Koristeći pretpostavljeno polje pomeranja, nelinearne veze deformacija i pomeranja (u von Karman-ovom smislu) i 3D konstitutivne jednačine lamine, formulisan je linearizovan problem izvijanja ploče. Napisan je program u MATLAB programskom jeziku za numeričko rešenje dobijeno po metodi konačnih elemenata. Rešenja kritičnih opterećenja sendvič ploča dobijena primenom sopstvenog programa, upoređena su sa raspoloživim rešenjima iz literature.
Keywords:
Buckling loads / Sandwich plate / Layer wise plate model / Finite element / MATLAB program
Source:
Proceedings / The 3th International Conference Civil Engineering - Science & Practice, Žabljak, Montenegro, 2010., 2010, 9-14
Publisher:
  • University of Montenegro, Faculty of Civil Engineering
Projects:
  • Experimental and Theoretical Research of Engineering Structures in Civil Engineering at usability aspect/ TP16027//

ISBN: 978-86-82707-18-9

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URI
http://grafar.grf.bg.ac.rs/handle/123456789/1909
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  • Radovi istraživača / Researcher's publications
  • Катедра за техничку механику и теорију конструкција
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