CAD/CAE Workflow for the Topology Optimization and Geometric Reconstruction of a Structural Component

  • Florin-Bogdan MARIN “Dunarea de Jos” University of Galati, Romania
  • Mihaela MARIN “Dunarea de Jos” University of Galati, Romania
Keywords: topology optimization, PolyNURBS, lattice structure, CAD/CAE

Abstract

This paper presents a study on the topological optimization of a structural component and the conversion of the optimized result into a manufacturable geometric model. The initial model was developed in a CAD environment and imported into the finite element analysis software, where boundary conditions and loading constraints were applied. The optimization process aimed to minimize structural compliance while reducing material usage and maintaining adequate stiffness. Different volume fractions and design parameters were investigated to identify a suitable optimized configuration. The obtained topology optimization results were analysed in terms of structural continuity, manufacturability, and clarity of the load-bearing features. Since the raw optimized geometry often contains irregular surfaces and complex shapes that are difficult to manufacture directly, the result was further reconstructed using NURBS and PolyNURBS modelling techniques. This stage allowed the creation of a smoother, continuous, and closed geometric model suitable for further analysis and production. Lattice structures are also integrated inside the reconstructed model to reduce mass while maintaining mechanical performance. The proposed workflow shows how CAD/CAE tools can transform an optimized conceptual design into a manufacturable structural component. The results emphasize the importance of post-processing, geometric reconstruction, and manufacturability checks in topology optimization.

Creative Commons License

Downloads

Download data is not yet available.

References

[1]. El Khadiri I., et al., Topology optimization methods for additive manufacturing: a review, International Journal for Simulation and Multidisciplinary Design Optimization, vol. 14, article 12, 2023.
[2]. Zhu J., et al., A review of topology optimization for additive manufacturing: Status and challenges, Chinese Journal of Aeronautics, vol. 34, no. 1, p. 91-110, 2021.
[3]. Prathyusha A. L. R., Kumar B. V. S. R. N., A review on additive manufacturing and topology optimization process for weight reduction studies in various industrial applications, Materials Today: Proceedings, vol. 62, p. 109-117, 2022.
[4]. Anh N. T., et al., Study on Topology Optimization Design for Additive Manufacturing, Engineering, Technology & Applied Science Research, vol. 14, no. 3, p. 14437-14441, 2024.
[5]. Mhapsekar K., et al., Additive Manufacturing Constraints in Topology Optimization for Improved Manufacturability, Journal of Manufacturing Science and Engineering, vol. 140, no. 5, article 051017, 2018.
[6]. Rosnitschek T., et al., Manufacturing Constraints in Topology Optimization for the Direct Extrusion-Based Additive Manufacturing of Parts, Designs, vol. 7, no. 1, article 8, 2023.
[7]. Misiun G., et al., Topology optimization for additive manufacturing with distortion constraints, Computer Methods in Applied Mechanics and Engineering, vol. 386, article 114095, 2021.
[8]. Liu S., et al., A realization method for transforming a topology optimization design into additive manufacturing structures, Engineering, vol. 4, no. 2, p. 277-285, 2018.
[9]. Montemurro M., Refai K., A Topology Optimization Method Based on Non-Uniform Rational Basis Spline Hyper-Surfaces for Heat Conduction Problems, Symmetry, vol. 13, no. 5, article 888, 2021.
[10]. Ren H., et al., AMRTO: Automated CAD model reconstruction of topology optimization result, Computer Methods in Applied Mechanics and Engineering, vol. 435, article 117673, 2025.
[11]. Nazir A., et al., A state-of-the-art review on types, design, optimization, and additive manufacturing of cellular structures, The International Journal of Advanced Manufacturing Technology, vol. 104, p. 3489-3510, 2019.
[12]. Chen L.-Y., et al., Additive manufacturing of metallic lattice structures: Unconstrained design, accurate fabrication, fascinated performances, and challenges, Materials Science and Engineering: R: Reports, vol. 146, article 100648, 2021.
[13]. Liu R., et al., A Review on Factors Affecting the Mechanical Properties of Additively-Manufactured Lattice Structures, Journal of Materials Engineering and Performance, vol. 33, p. 4685-4711, 2023.
[14]. Yang J., et al., Additive Manufacturing and Influencing Factors of Lattice Structures: A Review, Materials, vol. 18, no. 7, article 1397, 2025.
[15]. Miao X., et al., Review on mechanical properties of metal lattice structures, Composite Structures, vol. 342, article 118267, 2024.
Published
2026-09-15
How to Cite
1.
MARIN F-B, MARIN M. CAD/CAE Workflow for the Topology Optimization and Geometric Reconstruction of a Structural Component. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Sep.2026 [cited 21Sep.2026];49(3):12-8. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/10215
Section
Articles

Most read articles by the same author(s)

<< < 1 2 3