Author(s)

F. Navarrina, I. Muiños, I. Colominas & M. Casteleiro

Abstract

Minimum weight with stress constraints topology optimization F. Navarrina, I. Muifios, I. Colominas & M. Casteleiro GMNI - Grupo de Me'todos Numkricos en Ingenieria, Department of Applied Mathematics, Universidad de A Corufia, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Campus de Elvifia, 1.51 92 A Coruiia, Spain. Abstract Sizing and shape structural optimization problems are normally stated in terms of a minimum weight approach with constraints that limit the maximum allowable stresses and displacements. However, topology structural optimization problems have been traditionally stated in terms of a maximum stiffness (minimum compliance) approach. In this kind of formulations, the aim is to distribute a given amount of material in a certain domain, so that the stiffness of the resulting structure is maximized (the compliance, or energy of deformation, is minimized) for a given load case. Thus, the material mass is restricted to a predefined percentage of the maximum possible mass, whil

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