Damage approach: A new method for topology optimization with local stress constraints

Alexander Verbart, Matthijs Langelaar, Fred van Keulen

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Abstract

In this paper, we propose a new method for topology optimization with local stress constraints. In this method, material in which a stress constraint is violated is considered as damaged. Since damaged material will contribute less to the overall performance of the structure, the optimizer will promote a design with a minimal amount of damaged material. We tested the method on several benchmark problems, and the results show that the method is a viable alternative for conventional stress-based approaches based on constraint relaxation followed by constraint aggregation.
Original languageEnglish
JournalStructural and Multidisciplinary Optimization
Volume53
Issue number5
Pages (from-to)1081-1098
ISSN1615-147x
DOIs
Publication statusPublished - 2016

Bibliographical note

© The Author(s) 2015. This article is published with open access at Springerlink.com

Keywords

  • COMPUTER
  • ENGINEERING,
  • MECHANICS
  • SINGULAR TOPOLOGIES
  • STRUCTURAL OPTIMIZATION
  • CONTINUUM STRUCTURES
  • DESIGN
  • RELAXATION
  • Stress constraints
  • Singular optima
  • Constraint aggregation
  • Local constraints
  • Topology optimization
  • Software
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Control and Systems Engineering
  • Control and Optimization
  • Topology
  • Bench-mark problems
  • Constraint aggregations
  • Constraint relaxation
  • Damaged materials
  • Local stress constraints
  • Shape optimization
  • Engineering
  • Theoretical and Applied Mechanics
  • Computational Mathematics and Numerical Analysis
  • Engineering Design
  • SC8

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