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

被引：52
|
作者：
Verbart, Alexander [1 ]
Langelaar, Matthijs [2 ]
van Keulen, Fred [2 ]
机构：
[1] Natl Aerosp Lab NLR, Amsterdam, Netherlands
[2] Delft Univ Technol, Dept Precis & Microsyst Engn, Delft, Netherlands
来源：
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION | 2016年 / 53卷 / 05期
关键词：
Stress constraints; Singular optima; Constraint aggregation; Local constraints; Topology optimization; CONTINUUM STRUCTURES; SINGULAR TOPOLOGIES; DESIGN; RELAXATION;
D O I：
10.1007/s00158-015-1318-9
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
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.
引用
收藏
页码：1081 / 1098
页数：18
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