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Stress-constrained topology optimization: A topological level-set approach

Suresh, K ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1007/s00158-013-0899-4
  3. Publisher: 2013
  4. Abstract:
  5. The objective of this paper is to introduce and demonstrate an algorithm for stress-constrained topology optimization. The algorithm relies on tracking a level-set defined via the topological derivative. The primary advantages of the proposed method are: (1) the stresses are well-defined at all points within the evolving topology, (2) the finite-element stiffness matrices are well-conditioned, making the analysis robust and efficient, (3) the level-set is tracked through a simple iterative process, and (4) the stress constraint is precisely satisfied at termination. The proposed algorithm is illustrated through numerical experiments in 2D and 3D
  6. Keywords:
  7. Stress ; Topology optimization ; Iterative process ; Level Set ; Level set approach ; Level sets ; Numerical experiments ; Stiffness matrices ; Stress constraints ; Topological derivatives ; Algorithms ; Iterative methods ; Shape optimization ; Stiffness matrix ; Stresses ; Topology ; Finite element method
  8. Source: Structural and Multidisciplinary Optimization ; Volume 48, Issue 2 , August , 2013 , Pages 295-309 ; 1615147X (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs00158-013-0899-4