Düzlemsel yüklenmiş ortasında dairesel delik bulunan kompozit plakta oluşan elastik gerilmelerin sonlu elemanlar yöntemi ile analizi

Bu çalışmada, düzlemsel yüklenmiş ortasında dairesel delik bulunan kompozit plakta oluşan elastik gerilmelerin analizi yapılmıştır. Dairesel deliği bulunan plak, bir kenarı boyunca uniform eksenel düzlemsel yüklemeye maruz bırakılmış ve deliğin kenarları boyunca herhangi bir yükleme uygulanmamıştır. Alüminyum metal-matriksli kompozit plak, simetrik ve antisimetrik olarak farklı oryantasyon açılarında takviyelendirilmiş 4 ortotrop tabakanın yapıştırılması ile oluşturulmuştur. Elastik gerilmelerin analizi, sonlu elemanlar yöntemi kullanılarak bilgisayar programı (FORTRAN) yardımı ile yapılmıştır.

The analysis of elastic stresses in the composite plate with circular hole subjected to in-plane loads by means of finite element method

In this study, the analysis of the elastic stresses on the cross-section of composite plate with circular hole subjected to in-plane loads is performed. The plate with circular hole is subjected to the uniform axial planar load along one edge where no load is exerted along the hole edge. Aluminum metal-matrix composite plate is composed of 4 orthotropic layers oriented with different angles in symmetric and anti-symmetric manner. The elastic stresses are analyzed with Finite Elements Method (FEM) by means of a program developed with FORTRAN.

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1.Xiong, Y., "A stress analysis method for bi-axially loaded fastener hole in composite laminate of finite geometry", Journal of Applied Mechanics, 65, 787-790, 1998.
2.Özbay, M., "Stress analysis of metal matrix laminated plates under in plane loading", Journal of the Institute of Science and Technology,Gazi Uni, 12, 3, 849-857,1999.
3.Fish, J. & Guttal, R., "The s-version of finite element method for laminated composites", International Journal for Numerical Methods in Engineering, 39, 3641-3662,1996.
4.Sundaresan, P., Singh, G. & Rao, G.V.,"Buckling of moderately thick rectangular composite plates subjected to partial edge compression", International Journal Mechanicals Science, 40,11,1105-1117,1998.
5.Yamazaki, K. & Tsubosaka, N., "A stress analysis technique for plate and shell built-up structures with junctions and its applications to minimum weight design of stiffened structures", Structural Optimization, 14,173-183,1997.
6.Galvanetto, U., Pellegrino, C. & Schrefler, B.A., "A tree-dimensional stress recovery procedure for composite materials", Computers & Structures, 69, 567-575,1998.
7.Hyer, M.W., Klang, E.C. & Cooper, D.E., "The effects of pin elasticity, clearance and friction on the stresses in a pin-loaded orthotropic plate", Journal of Composite Materials, 21, 190-205. 1987.
8.Karakuzu, R., Özel, A. & Sayman, O., "Elastic- plastic finite element analysis of metal matrix plates with edge notches", Computers & Structures, 63, 3, 551-558,1997.
9.Jong, T., "Stresses around pin-loaded holes in elastically orthotropic or isotropic plates", Journal of Composite Materials, 11, 313-331,1977.
10.Kaltakcı, M.Y., "İki eksenli yükleme veya kesme etkisindeki daire delikli ortotropik levhalarda gerilme yığılmaları", S.Ü. Mühendislik Fakültesi Dergisi, 10,1-9,1995.
11.Arslan. N., Pıhtılı H. & Gur M., "Elasto-plastic stress analysis of thermoplastic matrix composite laminated and perforated plates under in-plane loading", Journal of Reinforced Plastics and Composites, 20,1222-1252, 2001.
12.Arslan, N., Sancaktar, E., & Çelik, M., "Elasto- plastic behavior of thermoplastic matrix roller chain link plates reinforced with steel fibers", ASME 2000 Design Engineering Technical Conferences and Computers and Information in Engineering Conferences, 1-10,2000.
13.Arslan,. N.,.Sancaktar, E. & Turgut,,A., "Elasto-Plastic Finite Element Analysis Of Isotropic Plates With U-Notches", ASME International Mechanical Engineering Congress and Exposition, 92,45-58,1996.