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Buckling of Discretely Stringer-Stiffened Composite Cylindrical Shells under Combined Axial Compression and External Pressure
| Content Provider | Semantic Scholar |
|---|---|
| Author | Poorveis, Davood Kabir, Mohammad Zaman |
| Copyright Year | 2006 |
| Abstract | In this paper, the static buckling of especially orthotropic stringer-sti ened composite cylindrical shells subjected to combined axial compression and external pressure is investigated, based on geometrical non-linear analysis with considering pre-buckling deformations. The kinematic relation of shells is based on the Donnell non-linear theory and First Order Shear Deformation (FOSD) is adopted for both shell and sti eners. Displacements, rotations and interacting forces are expressed in terms of Fourier series expansions as independent approximate solution functions. Unknown coe cients of shell and stringers are related by satisfying continuity conditions of displacements at their contact areas using Lagrange multipliers. The non-linear equilibrium equations are obtained using the Ritz method. The e ects of sensitivity parameters, e.g., shell lay-ups, di erent numbers of stringers in the circumference, location of sti eners (outside vs. inside) and the discrete versus smeared approach on interaction buckling curves are considered. Results indicate remarkable di erences between outside and inside stringer-sti ened cylinder buckling loads and also illustrate the fundamental role of shell stacking sequences and sti ened shell geometry on the applicability range of the smeared sti ener approach. |
| Starting Page | 113 |
| Ending Page | 123 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| Volume Number | 13 |
| Alternate Webpage(s) | http://scientiairanica.sharif.edu/article_2569_97d476552df6e66b908ebb0f5ca999d6.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
