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10 items by relevance
1 Conference paper

On Topology Optimization with Manufacturing Constraints

Sigmund, Ole

Iii European Conference on Computational Mechanics — 2006

Year: 2006

Language: English

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2 Book chapter

On topology Optimization with Manufacturing Constraints

Sigmund, O.

Iii European Conference on Computational Mechanics — 2006, pp. 497-497

A standing problem in topology optimization problems is the efficient enforcement of manufacturing constraints such as minimum or maximum feature sizes. A large number of methods have been proposed including filtering techniques, perimeter control and gradient control. In this paper we propose some

Year: 2006

Language: English

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3 Journal article

Topology optimization of compliant mechanisms with stress constraints and manufacturing error robustness

Assis da Silva, Gustavo; Teófilo Becka, André; Sigmund, Ole

Computer Methods in Applied Mechanics and Engineering — 2019, Volume 354, pp. 397-421

of the dilated topology, in order to avoid possible numerical instabilities that may occur when the upper volume constraint is not active. Several examples are solved and the optimized results are post-processed with body-fitted finite element meshes. Numerical results demonstrate that: 1) the proposed

Year: 2019

Language: English

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4 Journal article · Preprint article

Three‐dimensional manufacturing tolerant topology optimization with hundreds of millions of local stress constraints

Silva, Gustavo Assis; Aage, Niels; Beck, André Teófilo; Sigmund, Ole

International Journal for Numerical Methods in Engineering — 2021, Volume 122, Issue 2, pp. 548-578

In topology optimization, the treatment of stress constraints for very large scale problems (more than 100 million elements and more than 600 million stress constraints) has so far not been tractable due to the failure of robust agglomeration methods, i.e. their inability to accurately handle

Year: 2021

Language: English

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5 Journal article

Topology optimization of compliant mechanisms considering stress constraints, manufacturing uncertainty and geometric nonlinearity

Assis da Silva, Gustavo; Beck, André Teófilo; Sigmund, Ole

Computer Methods in Applied Mechanics and Engineering — 2020, Volume 365, pp. 112972

This paper proposes and investigates two formulations to topology optimization of compliant mechanisms considering stress constraints, manufacturing uncertainty and geometric nonlinearity. The first formulation extends the maximum output displacement robust approach with stress constraints

Year: 2020

Language: English

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