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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 33
DEVELOPMENTS IN COMPUTATIONAL TECHNIQUES FOR STRUCTURAL ENGINEERING Edited by: B.H.V. Topping
Paper XII.1
Fast Topological Design in Bidimensional Elasticity J.E. Souza de Cursi
Rouen Institute of Mechanics, Rouen, France J.E. Souza de Cursi, "Fast Topological Design in Bidimensional Elasticity", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 313-322, 1995. doi:10.4203/ccp.33.12.1
Abstract
We consider a problem of topological optimization: the
determination of the minimum mass linear elastic body
submitted to a planar field of stresses. We take into account
a Von Mises criterion for the plastic collapse (the
results can be extended to quadratic functions of the
stresses). The topology is characterized by an unknown
thickness map rho: the holes correspond to the regions
where rho = 0. A 2D mechanical formulation is derived
from the 3D formulation. We state a theorem of fully
stressed design, which characterizes rho as the solution of
an algebraic equation. This result leads to a numerical
method which is applied to some classical situations.
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