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| Content Provider | Springer Nature Link |
|---|---|
| Author | Edwin Sudhagar, P. Ananda Babu, A. Rajamohan, Vasudevan Jeyaraj, P. |
| Copyright Year | 2015 |
| Abstract | In this study, structural optimization of rotating tapered thick laminated composite plates with ply drop-offs has been investigated numerically. The governing differential equations of motion of the tapered composite plate have been presented including the energy associated with the inertia force, coriolis force, displacement dependent centrifugal force and initial stress resultants due to steady state rotation. Four noded quadrilateral finite element has been formulated based on the first order shear deformation theory. Finite element analysis results are validated with experimental results for natural frequencies of the tapered plate with various configurations. Various cases of optimization problems are formulated with different objective functions in terms of maximization of natural frequencies and damping factors (individually and combined) and solved using genetic algorithm in order to obtain optimal ply sequence and ply orientation. It is shown that the optimization problem with maximization of fundamental modal damping factor without rotating condition yields the optimal layout as 90° for all the layers in the plate. It is also observed that maximization of the fundamental modal damping factor yields identical optimal orientation for uniform and all the configurations of a tapered composite plate. |
| Starting Page | 85 |
| Ending Page | 124 |
| Page Count | 40 |
| File Format | |
| ISSN | 15691713 |
| Journal | International Journal of Mechanics and Materials in Design |
| Volume Number | 13 |
| Issue Number | 1 |
| e-ISSN | 15738841 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2015-08-06 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Tapered laminated composite thick plate Structural optimization FSDT Composites Continuum Mechanics and Mechanics of Materials Classical Mechanics Characterization and Evaluation of Materials Engineering Design |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Materials Science Mechanical Engineering |
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