Advanced search
1 file | 2.44 MB

Multi-physics topology optimization for 3D-printed structures

Gieljan Vantyghem (UGent) , Marijke Steeman (UGent) , Veerle Boel (UGent) and Wouter De Corte (UGent)
Author
Organization
Abstract
General topology optimization optimizes material layout within a given design space based on structural aspects. In this paper, structural topology optimization is extended to enable optimization of thermal performances. A novel multi-physics interpolation scheme is proposed and its link with 3D-printed structures is explained. Each design variable now has three optimal states: one state represents the surrounding air, having weak structural and thermal material characteristics; another state represents the solid structure with good structural, but less efficient thermal properties; a third state symbolizes a weight-efficient mesh-structure, improving the structure's thermal conductivity while retaining some structural integrity. The optimization study is performed using the GCMMA algorithm with a weighted-sum mono objective. One part of the equation aims to maximize stiffness, while the other attempts to minimize the thermal transmittance. The design domain of choice is a 2-dimensional roof component that is simply supported at the edges. Results show that using this multi-physics optimization strategy can be very useful to find the optimal trade-off between structural integrity and thermal efficiency. The maximum deflection and U-value of the optimized components are also compared to more traditional design approaches. The topologically-optimized solutions clearly outperform the others.
Keywords
Conceptual design, Topology optimization, 3D construction printing

Downloads

  • IASS18 Final Paper.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 2.44 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Vantyghem, Gieljan, Marijke Steeman, Veerle Boel, and Wouter De Corte. 2018. “Multi-physics Topology Optimization for 3D-printed Structures.” In Proceedings of the IASS Symposium 2018.
APA
Vantyghem, G., Steeman, M., Boel, V., & De Corte, W. (2018). Multi-physics topology optimization for 3D-printed structures. Proceedings of the IASS Symposium 2018. Presented at the Creativity in Structural Design.
Vancouver
1.
Vantyghem G, Steeman M, Boel V, De Corte W. Multi-physics topology optimization for 3D-printed structures. Proceedings of the IASS Symposium 2018. 2018.
MLA
Vantyghem, Gieljan, Marijke Steeman, Veerle Boel, et al. “Multi-physics Topology Optimization for 3D-printed Structures.” Proceedings of the IASS Symposium 2018. 2018. Print.
@inproceedings{8583228,
  abstract     = {General topology optimization optimizes material layout within a given design space based on structural aspects. In this paper, structural topology optimization is extended to enable optimization of thermal performances. A novel multi-physics interpolation scheme is proposed and its link with 3D-printed structures is explained. Each design variable now has three optimal states: one state represents the surrounding air, having weak structural and thermal material characteristics; another state represents the solid structure with good structural, but less efficient thermal properties; a third state symbolizes a weight-efficient mesh-structure, improving the structure's thermal conductivity while retaining some structural integrity. The optimization study is performed using the GCMMA algorithm with a weighted-sum mono objective. One part of the equation aims to maximize stiffness, while the other attempts to minimize the thermal transmittance. The design domain of choice is a 2-dimensional roof component that is simply supported at the edges. Results show that using this multi-physics optimization strategy can be very useful to find the optimal trade-off between structural integrity and thermal efficiency. The maximum deflection and U-value of the optimized components are also compared to more traditional design approaches. The topologically-optimized solutions clearly outperform the others.},
  author       = {Vantyghem, Gieljan and Steeman, Marijke and Boel, Veerle and De Corte, Wouter},
  booktitle    = {Proceedings of the IASS Symposium 2018},
  keyword      = {Conceptual design,Topology optimization,3D construction printing},
  language     = {eng},
  location     = {Boston, USA},
  title        = {Multi-physics topology optimization for 3D-printed structures},
  year         = {2018},
}