Buckling Analysis of Stiffened Cross-Ply Laminated Conical Shells under Axial Compression Using Generalized Differential Quadrature Method | ||
| AUT Journal of Mechanical Engineering | ||
| مقاله 3، دوره 5، شماره 4، زمستان 2021، صفحه 535-552 اصل مقاله (1.11 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajme.2021.18820.5922 | ||
| نویسندگان | ||
| Mohammad Ali Kouchakzadeh* 1؛ Peyman Gholami1؛ Meisam Shakouri2؛ Mohammad Noghabi3 | ||
| 1Department of Aerospace Engineering, Sharif University of Technology, Tehran, Iran | ||
| 2Department of Aerospace Engineering, Semnan University, Semnan, Iran | ||
| 33 Iran Space Institute, Tehran, Iran | ||
| چکیده | ||
| This study aims to determine the global buckling load of stiffened composite conical shells under axial compression. Stringers stiffen the conical shells in longitudinal and rings in circumferential directions. The boundary conditions are assumed to be simply supported at both ends. At first, the equilibrium equations are obtained using the first-order shear deformation theory and the principle of minimum potential energy. Effects of stiffeners (longitudinal and circumferential directions) are considered using the smearing technique. The resulting equations are solved using the generalized differential quadrature method to obtain the critical buckling load. The acquired results are compared with the finite element method results and other researcher's results available in the literature, and good agreement is observed. The influence of the number of stiffeners and rings, length, radius, semi-vertex angle of the cone, and shear deformation on the shell's buckling behavior is studied. Finally, the optimum number of stiffeners (longitudinal and circumferential directions) to achieve the maximum global buckling load in a cross-ply composite conical shell with various stacking sequences for a specific weight and overall geometry is investigated. | ||
| کلیدواژهها | ||
| Stiffened conical shell؛ Laminated composite shell؛ Buckling؛ First-order shear deformation theory؛ Generalized differential quadrature | ||
| مراجع | ||
|
| ||
|
آمار تعداد مشاهده مقاله: 1,224 تعداد دریافت فایل اصل مقاله: 680 |
||
| تعداد نشریات | 9 |
| تعداد شمارهها | 454 |
| تعداد مقالات | 5,766 |
| تعداد مشاهده مقاله | 8,369,383 |
| تعداد دریافت فایل اصل مقاله | 6,928,254 |