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Shape optimization of axisymmetric shells using a higher-order shear deformation theory
In this paper structural and sensitivity analysis for the optimization of laminated axisymmetric shells subjected to static constraints and arbitrary loading is presented. The shell thickness, radial coordinate of a nodal point, lamina thickness and the angle of orientation of the fibers are the design variables. The objective of the design optimization is the minimization of the volume of the shell or the strain energy. The model is based on a three-node axisymmetric finite element with the 24 degrees of freedom. A higher-order theory is developed for the nonlinear distribution of the meridional displacement component through the thickness of the shell. The sensitivites of the discrete model developed are evaluated analytically using a symbolic manipulator. The efficiency and accuracy of the proposed model is discussed with reference to the applications.
Shape optimization of axisymmetric shells using a higher-order shear deformation theory
In this paper structural and sensitivity analysis for the optimization of laminated axisymmetric shells subjected to static constraints and arbitrary loading is presented. The shell thickness, radial coordinate of a nodal point, lamina thickness and the angle of orientation of the fibers are the design variables. The objective of the design optimization is the minimization of the volume of the shell or the strain energy. The model is based on a three-node axisymmetric finite element with the 24 degrees of freedom. A higher-order theory is developed for the nonlinear distribution of the meridional displacement component through the thickness of the shell. The sensitivites of the discrete model developed are evaluated analytically using a symbolic manipulator. The efficiency and accuracy of the proposed model is discussed with reference to the applications.
Shape optimization of axisymmetric shells using a higher-order shear deformation theory
Gestaltoptimierung achsensymmetrischer Schalen mittels einer Scherdeformationstheorie höherer Ordnung
Csonka, B. (author) / Kozak, I. (author) / Mota Soares, C.M. (author) / Mota Soares, C.A. (author)
Structural Optimization ; 9 ; 117-127
1995
11 Seiten, 18 Bilder, 2 Tabellen, 30 Quellen
Article (Journal)
English
Zylinderschale , Optimierung , Formgebung , geometrische Form , Schichtstoff , Strukturanalyse , Schichtdicke , Faserorientierung , Auslegung (Dimension) , Variable , Minimierung , Rauminhalt , nichtlineare Gleichung , Verlagerung , Rechenmodell , Simulationsmodell , Näherungsverfahren , Finite-Elemente-Methode , Vektor , Iteration , Differenzialgleichung , Integralgleichung , Umformen , Simulation , Sensitivitätsanalyse
A SEMIANALYTICAL HIGHER ORDER MODEL: PEIZOLAMINATED AXISYMMETRIC SHELLS
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