ARTICLE
Topology optimization of structures with stress and additive manufacturing constraints
| 1 | Opole University of Technology, Opole, Poland |
CORRESPONDING AUTHOR
Online publication date: 2020-04-15
Publication date: 2020-04-15
Submission date: 2019-11-28
Final revision date: 2020-01-28
Acceptance date: 2020-02-24
Journal of Theoretical and Applied Mechanics 2020;58(2):459–468
KEYWORDS
TOPICS
ABSTRACT
The paper presents a new methodology dedicated to design for additive manufacturing. Based
on a hybrid algorithm of topological optimization, the method enables application of
advanced constraints and validates solutions “on the fly” using virtual prototyping. Advanced
constraints consider the influence of directions of additive manufacturing as well as the
equivalent stress. In the optimization framework, real material properties related to three
manufacturing directions were considered. The new design methodology is illustrated by
benchmark tests and examples of wrist-hand orthosis topology optimization in which stress
and manufacturing constraints were taken into account. As demonstrated by the conducted
comparison tests with available commercial tools, the solutions obtained with the new
method were characterized by lower mass and shorter computation time.
ACKNOWLEDGEMENTS
This paper is funded by the National Science Center, Poland on the implementation of the scientific activity, which received funding under the competition: “MINIATURA I” No. 2017/01/X/ST8/00156.
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