Publication detail

Numerical and Experimental Evaluation of Structured Material for Use in Multi-scale Topology Optimization

VAVERKA, O. ČERVINEK, O. JAROŠ, J. KOUTNÝ, D. PANTĚLEJEV, L.

Original Title

Numerical and Experimental Evaluation of Structured Material for Use in Multi-scale Topology Optimization

Type

journal article in Web of Science

Language

English

Original Abstract

Multi-scale topology optimization is a powerful tool for engineers seeking a design with minimum weight and maximum stiffness, using a structured material in the form of a lattice structure. Furthermore, the current trend is to combine multiple lattice topologies in one component to achieve the best possible response to local loading conditions while minimizing weight. Therefore, in this study, a numerical and experimental evaluation by compression tests in two directions is performed for six basic lattice topologies and two hypotheses are tested. The first hypothesis states that an additional weight saving of more than 30% can be achieved by a better choice of lattice topology. The second hypothesis is based on the manufacturing limitations of the Laser Powder Bed Fusion technology and the assumption that a favorable loading direction parallel to the building direction exists. The first hypothesis is only confirmed for loading in the direction parallel to the building direction and the second only for two lattice topologies. When both hypotheses are combined, the additional weight reduction of the multi-scale topology optimization result is 44.5% according to the numerical results and 32.7% according to the experimental verification.

Keywords

aluminum alloy, laser powder bed fusion, compression tests, heat treatment, effective modulus of elasticity

Authors

VAVERKA, O.; ČERVINEK, O.; JAROŠ, J.; KOUTNÝ, D.; PANTĚLEJEV, L.

Released

15. 5. 2024

Publisher

Wiley-VCH GmbH

Location

Weinheim

ISBN

1527-2648

Periodical

Advanced Engineering Materials

Year of study

26

Number

13

State

Federal Republic of Germany

Pages from

1

Pages to

10

Pages count

10

URL

https://doi.org/10.1002/adem.202400127

Full text in the Digital Library

http://hdl.handle.net/11012/249509

BibTex

@article{BUT188601,
  author="Ondřej {Vaverka} and Ondřej {Červinek} and Jan {Jaroš} and Daniel {Koutný} and Libor {Pantělejev}",
  title="Numerical and Experimental Evaluation of Structured Material for Use in Multi-scale Topology Optimization",
  journal="Advanced Engineering Materials",
  year="2024",
  volume="26",
  number="13",
  pages="1--10",
  doi="10.1002/adem.202400127",
  issn="1527-2648",
  url="https://doi.org/10.1002/adem.202400127"
}