KOMPOZİT MALZEMEYLE KAPLI ALÜMİNYUM KİRİŞİN STATİK VE BURKULMA ANALİZİ

Öz

   Bu çalışmada yüzeyi elyaf takviyeli kompozit malzemeyle kaplanmış alüminyum kirişin statik ve burkulma analizi incelenmiştir. Çalışmada Euler-Bernoulli kiriş teorisi kullanılarak problemin çözümü sonlu elemanlar metoduyla gerçekleştirilmiştir. Problemin analizi için MATLAB’ta sonlu elemanlar kodu yazılarak deplasman ve burkulma yükleri hesaplanmıştır. Çalışmada yüzey ve çekirdek tabaka kalınlığının, kompozit malzeme hacim oranının, lif oryantasyon açısının, farklı kiriş konfigürasyonlarının ve farklı boy kalınlık oranlarının deplasman ve burkulma yükleri üzerindeki etkisi incelenmiştir. İncelenen bu parametrelerin kirişin deplasman ve burkulma yüklerini önemli ölçüde etkilediği gözlemlenmiştir.

Anahtar Kelimeler

• Kompozit kaplama,burkulma yükü,deplasman,sonlu elemanlar metodu

STATICS AND BUCKLING ANALYSIS OF ALUMINUM BEAMS WITH COMPOSITE COATS

Abstract

   In this study, static and buckling analysis of an aluminum beam coated with fiber reinforced composite material was investigated. Solution of the problem obtained via finite element method by using Euler-Bernoulli beam theory. Finite element simulation code is developed in MATLAB to calculate the displacement and buckling loads. The effect of surface and core layer thickness, composite material volume ratio, fiber orientation angle, different beam configurations and different aspect ratios on displacement and buckling loads was investigated in the study. It has been observed that these parameters have a significant effect on the displacement and buckling loads of the beam.

Keywords

• Composites coats,buckling load,displacement,finite element methods

Kaynakça

1. [1] HAMADA, A., “Vibration and Damping Analysis of Beams with Composite Coats”, Composite Structures, 32, 33-38, 1995.
2. [2] TEKILI, S., KHADRI, Y., MERZOUG, B., DAYA, E.M., DAOUADJI, A., “Free and Foced Vibration of Beams Strengthened by Composite Coats Subjected to Moving Loads”, Mechanics of Composite Materials, 52(6), 789-798, 2017.
3. [3] ZIBDEH, H.S., ABU HILAL, M., “Stochastic Vibration of Laminated Composite Coated Beam Traversed by A Random Moving Load”, Engineering structures, 25, 397-404, 2003.
4. [4] TEKILI, S., KHADRI, Y., MERZOUG, B., “Finite Element Analysis of Free Vibration of Beams with Composite Coats”, Mechanika, 21(4), 290-295, 2015.
5. [5] KHDEIR, A.A., REDDY., J.N.,“Buckling of Cross- Ply Laminated Beams with Arbitrary Boundry Conditions”, Composite Structures , 37(1), 1-3, 1997.
6. [6] AYDOĞDU, M., “Buckling Analysis of Cross-Ply Laminated Beams with General Boundary Conditions by Ritz Method”, Composites Science and Technology, 66, 1248-1255, 2006.
7. [7] EMAM, S.A., NAYFEH, A.H., “Postbuckling and Free Vibrations of Composite Beams”, Composite Structures, 88, 636-642, 2009.
8. [8] DOUVILLE, M.A., GROGNEC, P.L., “Exact Analytical Solutions for the Local and Global Buckling of Sandwich Beam- Columns Under Various loadings”, International Journal of Solids and Structures, 50, 2597-2609, 2013.

9. [9] HU, H. A., BELOUETTAR, S., FERRY, M.P., DAYA E. M., “Review and Assessment of Various Theories for Modelling Sandwich Composites”, Composite Structures, 84, 282-292, 2008.
10. [10] MANTARI, J.L., CANALES, F.G., “Free Vibration and Buckling of Laminated Beams via Hybrid Ritz Solution for Various Penalized Boundary Conditions”, Composite Structures, 152, 306-315, 2016.
11. [11] NGUYEN, T.K., NGUYEN, N.D., VO, T.P., THAI, H.T., “Trigonometric Series Solution for Analysis of Laminated Composite beams”, Composite Structures, 160, 142-151, 2017.
12. [12] CUNEDİOĞLU, Y., “Elastik Ortama Oturan Kompozit Kirişlerin Farklı Sıcaklık ve Eksenel Yük Altında Burkulma ve Serbest Titreşimi”, Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 6 (1), 180-190, 2017.
13. [13] OREH, A.M., KARKON, M., “Finite Element Formulation for Stability and Free Vibration Analysis of Timoshenko Beam”, Advances in Acoustics and Vibration,1-7, 2013.
14. [14] SAYMAN, O., KARAKUZU,R., AKTAŞ, A., Mukavemet 2, Sürat Üniversite yayınları, 2012.
15. [15] CUNEDİOĞLU, Y., BEYLERGİL B., “Free Vibration Analysis of Damaged Composite Beams”, Structural Engineering and Mechanics, 55(1), 79-92, 2015.
16. [16] CUNEDİOĞLU, Y., “Analyses of Laminated Cantilever Composite Beams by Model Order Reduction Techniques”, Mechanics Based Design of Structures and Machines, 39, 22-45, 2011.