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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