000015587 001__ 15587
000015587 005__ 20161115135324.0
000015587 04107 $$aeng
000015587 046__ $$k2013-06-12
000015587 100__ $$aDelgado, G.
000015587 24500 $$aTopology and Lay-Up Optimization of Multi-Layered Composite Materials

000015587 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015587 260__ $$bNational Technical University of Athens, 2013
000015587 506__ $$arestricted
000015587 520__ $$2eng$$aThis work is devoted to multi-layered composite design in aerospace structures. We determine the optimal fiber orientation, stacking sequence and topology of a composite multilayered structure where each layer is modeled as biphasic orthotropic linearly elastic membrane. The objective function to be minimized is the weight of the composite structure under a global rigidity constraint and a point-wise buckling constraint. Due to the double discrete and continuous nature of the problem, we propose a numerical algorithm for fiber orientation and stacking sequence optimization based on non-linear integer programming coupled to a level set method controlled by a shape and topological sensitivity analysis for the topology optimization. A 2-d airplane fuselage section test case is discussed.

000015587 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015587 653__ $$aLevel set method, Topology Optimization, Stacking sequence optimization, Composite materials, Integer programming, Point-wise constraints.

000015587 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015587 720__ $$aDelgado, G.$$iAllaire, G.
000015587 8560_ $$ffischerc@itam.cas.cz
000015587 8564_ $$s296560$$uhttps://invenio.itam.cas.cz/record/15587/files/1113.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 14 OPTIMUM DESIGN IN STRUCTURAL DYNAMICS AND EARTHQUAKE ENGINEERING
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000015587 962__ $$r15525
000015587 980__ $$aPAPER