Paper number 228
|DESIGN OF LAMINATED PLATES WITH REQUIRED IN-PLANE, COUPLING AND BENDING STIFFNESSES USING NON-STANDARD PLY ANGLES|
LERMES, Université Blaise Pascal, 24, avenue des Landais, BP 206, 63174 Aubière Cedex
|Summary||The purpose of this paper is to describe an optimization procedure that provides stacking sequences fulfilling required stiffness properties. The elastic properties of the plates to be designed are described by twelve lamination parameters. An objective function involving these twelve required parameters is minimized with respect to the ply orientations that are considered as continuous variables. A method based on the gradient method is used to perform the minimization. Various examples of laminated plates exhibiting particular elastic properties illustrate the approach. In conclusion, all required properties are obtained with twelve plies and the stacking sequences are not symmetric, even though the corresponding plates are uncoupled.
||Keywords|| design, laminated plate, optimization, stiffness.
Theme : Design Methods and Optimisation
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