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Structural and Multidisciplinary Optimization

Erschienen in:

02.04.2021 | Research Paper

Topology and alignment optimization of additively manufactured, fiber-reinforced composites

verfasst von: David Ryan Seifert, Andrew Abbott, Jeffery Baur

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 6/2021

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Abstract

A design algorithm is presented for finding optimal topologies and alignment profiles of additively manufactured, fiber-reinforced composite structures. A SIMP-like scheme is used to determine where a constrained amount of material is to be located in the design space, while an additional local design variable determines print speed. The local print speed affects fiber alignment based on an experimentally determined relationship, allowing for graded control over effective orthotropy. Material properties are selected from experimental results for additive printed, chopped fiber composites. Two different load cases and three different global print directions are selected for a total of six minimum compliance optimization cases. Results show the design is sensitive to both local fiber control and global print angle selection. A post-processing and manufacturing technique is also introduced for fabricating the optimized structures.

Vorheriger Artikel ESLA: a new surrogate-assisted single-loop reliability-based design optimization technique

Nächster Artikel Phase field-based topology optimization of metallic structures for microwave applications using adaptive mesh refinement

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Titel: Topology and alignment optimization of additively manufactured, fiber-reinforced composites
verfasst von: David Ryan Seifert
Andrew Abbott
Jeffery Baur
Publikationsdatum: 02.04.2021
Verlag: Springer Berlin Heidelberg
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 6/2021
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-020-02826-7

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