Topological optimization and inverse problems

Authors

  • Lidia Jackowska-Strumiłło Technical University of Łódź
    Poland
  • Jan Sokołowski Universite Henri Poincaré
    France
  • Antoni Żochowski Systems Research Institute of the Polish Academy of Sciences
    Poland

Keywords:

topological derivative, shape optimization, optimality conditions, artificial neural network, shape inverse problem, nucleation of openings

Abstract

The topological derivative of an arbitrary shape functional is introduced in [29] for 2D elasticity. The optimality conditions for general shape optimization problems are established in [30] using the shape variations including boundary and topology variations. The topology variations result in the presence of topological derivatives in the necessary conditions for optimality. In the present paper we derive the necessary optimality conditions for a class of shape optimization problems. The topological variations of shape functionals are used for the numerical solution of inverse problems. The numerical method uses neural networks. The results of computations confirm the convergence of the method.

References

[1] G. Allaire, E. Bonnetier, G. Francfort, F. Jouve. Shape optimization by the homogenization method. Numer. Math., 76, 27- 68, 1997.
[2] M.Ph. Bendsoe. Optimization of Structural Topology, Shape and Material. Springer, Berlin, 1995.
[3] A.R. Barron. Universal approximation bounds for superpositions of a sigmoidal function. IEEE Trans. On Information Theory, 39: 930- 945, 1993.
[4] M. Delfour, J .P. Zolesio. Shapes and geometries: analysis, differential calculus and optimization. To be published in the SIAM series on Advances in Design and Control.
[5] A.V. Cherkaev, Y. Grabovsky, A.B. Movchan, S.K. Serkov. The cavity of the optimal shape under the shear stresses. Int. J. Solids and Structures, 25, 4391-4410, 1999.

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Published

2023-01-27

Issue

pp. 163-176

Section

Articles

How to Cite

Jackowska-Strumiłło, L., Sokołowski, J., & Żochowski, A. (2023). Topological optimization and inverse problems. Computer Assisted Methods in Engineering and Science, 10(2), 163-176. https://cames3.ippt.pan.pl/index.php/cames/article/view/1085