BIBLIOS

Document type
Journal articles

Document subtype
Full paper

Title
Shape and Topology Optimization for Periodic Problems Part I: The shape and the topological derivative

Participants in the publication
C. Barbarosie (Author)
Dep. Matemática
CMAFcIO
A.-M. Toader (Author)
Dep. Matemática
CMAFcIO

Summary
In the present paper we deduce formulae for the shape and topological derivatives for elliptic problems in unbounded domains subject to periodicity conditions. Note that the known formulae of shape and topological derivatives for elliptic problems in bounded domains do not apply to the periodic framework. We consider a general notion of periodicity, allowing for an arbitrary parallelepiped as periodicity cell. Our calculations are useful for optimizing periodic composite materials by gradient type methods using the topological derivative jointly with the shape derivative for periodic problems. Important particular cases of functionals to minimize/maximize are presented. A numerical algorithm for optimizing periodic composites using the topological and shape derivatives is the subject of a second paper (Barbarosie and Toader, Struct Multidiscipl Optim, 2009).


Where published
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION

Publication Identifiers
ISSN - 1615-147X

Document Identifiers
URL - https://link.springer.com/article/10.1007/s00158-009-0378-0
URL - https://doi.org/10.1007/s00158-009-0378-0

Keywords
optimization of microstructures shape derivative topological derivative periodic homogenization porous materials