TORSIONAL BUCKLING ANALYSIS OF THIN-WALLED MONO-MULTIPLY CONNECTED LAMINATED COMPOSITE TUBES VIA FINITE ELEMENT METHOD
Öz
In this study torsional buckling of thin walled rectangular cross sectional tubes made of layer composite materials and exposed to torsion was examined. Walls of the tubes, is considered symmetrical cross-ply [θ1/θ2/θ1/θ2]s, (θ1+ θ2=90°).ANSYS packet programme the effects of length, orientation angle and cross section on the load of critic buckling was examined. In this study, the effects of the lengths of the tube, orientation angles and the dimensions of cross-section on the critical buckling loads are examined and presented in graphical and tabular forms.
Anahtar Kelimeler
Torsional buckling Laminated composites Thin-walled tubes Finite Element Methods
Kaynakça
- [Sofiyev A., Zerin Z., Türkmen M. (2003): “The buckling of laminated cylindrical thin shells under torsion varying as alinear function of time”,Turkish J. Eng. Env. Sci. TÜBİTAK 27, 237-245.
- Dongyao T.(2000): “Torsional buckling analysis of thin and thick shells o f revolution”, International Journal of Solids and Structures”, 37, 3055-3078.
- Papangelis, J. P., Trahair, N. S., and Hancock, G. L.(1998): “Elastic FlexuralTorsional Buckling of Structures by Computer. Computers and Structures”, 68(1-3), 125-137.
- Tong G., and Zhang L.(2003a): “A General Theory for the Flexural-Torsional Buckling of Thin-Walled Members I: Energy Method”, Advances in Structural Engineering, 6(4), 293-298.
- Tong G., and Zhang L.(2003b): “A General Theory for the Flexural-Torsional Buckling of Thin-Walled Members I: Fictitious Load Method”, Advances in Structural Engineering, 6(4), 299-308.
- Mao R., Lu C. H.(1999): “Buckling analysis of laminated cylindrical shell under torsion subjected to mixed boundary conditions”, International Journal of Solids and Structures, 36, 3821-3835. Mao R., Lu G.(2002): “A study of elastic-plastic buckling of cylindrical shells under torsion”, Thin-Walled Structures, 40, 1051-1071.
- Chen W., Tomasz W.(2001): “Torsional collapse of thin-walled prismatic columns”, 36, 181-196.
- Chen W., Tomasz W., Ottmar B., Kare K.(2001): “Torsional crushing of foam-filled thin-walled square columns”, 43, 2297-2317.
- Walker M., Reis T., and Adalı S.(1997): “Multiobjective Design of Laminated Cylindrical Shells for Maximum Torsional and Axial Buckling Loads”, Computers & Structures, 62, 237-242.
- Ho BPC, Cheng S.(1963): “Some problems in stability of heterogeneous aeolotropic cylindrical shells under combined loading”, J AIAA 12,1603-7.
- Shokrieh M.M., Hasani A., Lessad L.B., 2004. Shear buckling of composite drive shaft
- Etitum P. and Dong S.B., 1995. A comparative study of stability of laminated anisotropic cylinders under axial compression and torsion. Int.J.Solids Structures, 32(8/9)1231-1246.
- Alar Öner G.,2009. İnce Cidarlı Kompozit Tüplerde Burulma Burkulması.Atatürk Üniversitesi Fen Bilimleri Enstitüsü.
- ANSYS Inc.Theory Reference. Roylance D.(2000): “Laminated Composite Plates” ,MIT, Cambridge, MA 02139, February 10.
- Alar Öner G.,Temiz Ş., Akbulut H.,Özel A.,“İnce cidarlı, çapraz takviyeli, tabakalı kompozit tüplerde sonlu elemanlar yöntemi ile burulmalı burkulma analizi” Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, 15 Ocak 2007.
- Akbulut H., Öner G., Özel A., “İnce Cidarlı Kompozit Tüplerde Burul ma Burkulması” Tasarım-İmalat-Analiz Kongresi ,TİMAK, Balıkesir ,2628 Nisan 2006. ****
İNCE CİDARLI, TEK VE İKİ HÜCRELİ, TABAKALI KOMPOZİT TÜPLERDE SONLU ELEMANLAR YÖNTEMİ İLE BURULMALI BURKULMA ANALİZİ
Öz
Bu çalışmada, kompozit malzemeden yapılmış burulmaya maruz ince cidarlı dikdörtgen kesitli tüplerin burulma burkulması incelenmiştir. Tüplerin cidarları, simetrik çapraz takviyeli (cross-ply) [θ1/θ2/θ1/θ2]s ve [θ1+θ2=90º] ve simetrik açılı takviyelidir (angle-ply) [θ1/-θ1/θ1/-θ1]s.Tabaka sayısı 8 olarak kabul edilmiştir. Mil tek hücreli ve çok hücreli olarak modellenmiştir. ANSYS paket programı kullanılarak sonlu elemanlar yöntemiyle kritik burulmalı burkulma yükleri bulunmuştur. Bu çalışmada, tüpün uzunluğu, takviye açısı ve kesit boyutlarının kritik burulmalı burkulma yükü üzerine etkileri araştırılmıştır. Çalışmanın sonuçları grafikler halinde verilmiştir.
Anahtar Kelimeler
Burulma burkulması Tabakalı kompozitler İnce cidarlı tüpler Sonlu elemanlar
Kaynakça
- [Sofiyev A., Zerin Z., Türkmen M. (2003): “The buckling of laminated cylindrical thin shells under torsion varying as alinear function of time”,Turkish J. Eng. Env. Sci. TÜBİTAK 27, 237-245.
- Dongyao T.(2000): “Torsional buckling analysis of thin and thick shells o f revolution”, International Journal of Solids and Structures”, 37, 3055-3078.
- Papangelis, J. P., Trahair, N. S., and Hancock, G. L.(1998): “Elastic FlexuralTorsional Buckling of Structures by Computer. Computers and Structures”, 68(1-3), 125-137.
- Tong G., and Zhang L.(2003a): “A General Theory for the Flexural-Torsional Buckling of Thin-Walled Members I: Energy Method”, Advances in Structural Engineering, 6(4), 293-298.
- Tong G., and Zhang L.(2003b): “A General Theory for the Flexural-Torsional Buckling of Thin-Walled Members I: Fictitious Load Method”, Advances in Structural Engineering, 6(4), 299-308.
- Mao R., Lu C. H.(1999): “Buckling analysis of laminated cylindrical shell under torsion subjected to mixed boundary conditions”, International Journal of Solids and Structures, 36, 3821-3835. Mao R., Lu G.(2002): “A study of elastic-plastic buckling of cylindrical shells under torsion”, Thin-Walled Structures, 40, 1051-1071.
- Chen W., Tomasz W.(2001): “Torsional collapse of thin-walled prismatic columns”, 36, 181-196.
- Chen W., Tomasz W., Ottmar B., Kare K.(2001): “Torsional crushing of foam-filled thin-walled square columns”, 43, 2297-2317.
- Walker M., Reis T., and Adalı S.(1997): “Multiobjective Design of Laminated Cylindrical Shells for Maximum Torsional and Axial Buckling Loads”, Computers & Structures, 62, 237-242.
- Ho BPC, Cheng S.(1963): “Some problems in stability of heterogeneous aeolotropic cylindrical shells under combined loading”, J AIAA 12,1603-7.
- Shokrieh M.M., Hasani A., Lessad L.B., 2004. Shear buckling of composite drive shaft
- Etitum P. and Dong S.B., 1995. A comparative study of stability of laminated anisotropic cylinders under axial compression and torsion. Int.J.Solids Structures, 32(8/9)1231-1246.
- Alar Öner G.,2009. İnce Cidarlı Kompozit Tüplerde Burulma Burkulması.Atatürk Üniversitesi Fen Bilimleri Enstitüsü.
- ANSYS Inc.Theory Reference. Roylance D.(2000): “Laminated Composite Plates” ,MIT, Cambridge, MA 02139, February 10.
- Alar Öner G.,Temiz Ş., Akbulut H.,Özel A.,“İnce cidarlı, çapraz takviyeli, tabakalı kompozit tüplerde sonlu elemanlar yöntemi ile burulmalı burkulma analizi” Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, 15 Ocak 2007.
- Akbulut H., Öner G., Özel A., “İnce Cidarlı Kompozit Tüplerde Burul ma Burkulması” Tasarım-İmalat-Analiz Kongresi ,TİMAK, Balıkesir ,2628 Nisan 2006. ****
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 18 Mart 2014 |
| Yayımlandığı Sayı | Yıl 2013 Cilt: 6 Sayı: 2 |