Accession Number : ADP000086

Title :   Large Scale Structural Optimization by Finite Elements,

Corporate Author : LIEGE UNIV (BELGIUM) LABORATOIRE DE TECHNIQUES AERONAUTIQUES ET SPATIALES

Personal Author(s) : Fleury,Claude

Report Date : 1981

Pagination or Media Count : 19

Abstract : The optimization code contained in the SAMCEF ('Systems pour 1'Analyses des Millieux Continuous par Elements Finis') is built to loop on the static and dynamic analysis modules. As a result all the possibilities offered by these modules are still applicable, as well as those of the auxiliary modules, like mesh generators, plotting capabilities, etc. It also implies that, given a finite element model, the user may ask for one or more optimization steps, without anything else to do than to define the design constraints. The design variables are taken as the transverse sizes of the finite elements, i.e., the cross-sectional areas f bars and beams or the thicknesses of membranes, shear panles and flat shells. The objective function to be minimized is defined as a linear function of the design variables and it corresponds, most often, to the structural weight.

Descriptors :   *Structural engineering, *Optimization, *Finite element analysis, Computer programs, Modular construction, Structural analysis, Static loads, Dynamic loads, Mathematical models, Cross sections, Beams(Structural), Membranes, Panels, Shells(Structural Forms), Thickness, Weight, Structural response, Mathematical programming

Distribution Statement : APPROVED FOR PUBLIC RELEASE