Elastic stability analysis of stiffened and unstiffened sector plates using FEM | |
| Author | Rao, Vakkalagadda Venkata Sreedhara |
| Call Number | AIT Thesis no. 1339 |
| Subject(s) | Finite element method Elastic plates and shells |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | Finite element techniques are applied to in-plane, out-of-plane and buckling analyses of stiffened and unstiffened sector plates. An annular sector element with four nodes is considered in the analysis. The number of kinematic degrees-of-freedom per node is taken as two and four for in plane and out-of-plane analyses respectively. An attempt is made to develop a new in-plane sector element (PSR element). The PSR element has all its rigid body modes incorporated in its assumed displacement field. Numerical results of a few plane-stress problems are compared with the analytic solutions as well as those obtained by the most recently developed elements to prove the superiority of the proposed PSR element. A comparison of the results for the buckling analysis of stiffened and unstiffened sector plates is also made with the known analytical solutions. The proposed method is found to give very accurate results even with a coarse mesh due to the in corporation of the exact rigid body modes of a sector element. |
| Year | 1978 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Usami, Tsutomu ; Panitan Lukkunaprasit |
| Examination Committee(s) | Pama, Ricardo P. |
| Scholarship Donor(s) | Royal Netherland Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology,1978 |