| タイトル | Comparison of finite-difference schemes for analysis of shells of revolution |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740005524 |
| 著者（英） | Stephens, W. B.; Noor, A. K. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1973-12-01 |
| 言語 | eng |
| 内容記述 | Several finite difference schemes are applied to the stress and free vibration analysis of homogeneous isotropic and layered orthotropic shells of revolution. The study is based on a form of the Sanders-Budiansky first-approximation linear shell theory modified such that the effects of shear deformation and rotary inertia are included. A Fourier approach is used in which all the shell stress resultants and displacements are expanded in a Fourier series in the circumferential direction, and the governing equations reduce to ordinary differential equations in the meridional direction. While primary attention is given to finite difference schemes used in conjunction with first order differential equation formulation, comparison is made with finite difference schemes used with other formulations. These finite difference discretization models are compared with respect to simplicity of application, convergence characteristics, and computational efficiency. Numerical studies are presented for the effects of variations in shell geometry and lamination parameters on the accuracy and convergence of the solutions obtained by the different finite difference schemes. On the basis of the present study it is shown that the mixed finite difference scheme based on the first order differential equation formulation and two interlacing grids for the different fundamental unknowns combines a number of advantages over other finite difference schemes previously reported in the literature. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 74N13637
L-8898
NASA-TN-D-7337 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/196412 |
