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<p>The buckling load of a blade stiffened laminated composite plate having midplane symmetry is maximized for a given total weight. The thickness of the layers and the width and height of the stiffener are taken as the design variables. Buckling analysis is carried out using a finite element method. The optimization problem is solved using commercially available optimization packages. Due to the highly nonlinear nature of the optimality equations, several local optimum solutions are found. To examine the relationship between the number of local optimums and their relative magnitudes, various combinations of fiber orientation for the laminate layers and the blade stiffener are investigated.
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<br>Subjects: Buckling (Mechanics); Design.; Design optimization; blade stiffened plate; buckling</div>
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Achenbach, Mark R.</div>
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