Computational Optimization and Applications

, Volume 46, Issue 3, pp 535–569 | Cite as

A shape and topology optimization technique for solving a class of linear complementarity problems in function space

Article

Abstract

A shape and topology optimization driven solution technique for a class of linear complementarity problems (LCPs) in function space is considered. The main motivating application is given by obstacle problems. Based on the LCP together with its corresponding interface conditions on the boundary between the coincidence or active set and the inactive set, the original problem is reformulated as a shape optimization problem. The topological sensitivity of the new objective functional is used to estimate the “topology” of the active set. Then, for local correction purposes near the interface, a level set based shape sensitivity technique is employed. A numerical algorithm is devised, and a report on numerical test runs ends the paper.

Keywords

Function space Level set method Linear complementarity problem Obstacle problem Shape and topology optimization 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.University of SussexBrightonUK
  2. 2.Department of Mathematics, and Scientific Computing, Institute of Mathematics and Scientific ComputingUniversity of GrazGrazAustria
  3. 3.Institute of Mathematics and Scientific ComputingUniversity of GrazGrazAustria

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