Int. J. Simul. Multidisci. Des. Optim.
Volume 10, 2019
|Number of page(s)||10|
|Published online||12 March 2019|
Three-dimensional stress-based topology optimization using SIMP method
Bahir Dar Institute of Technology, Bahir Dar, Ethiopia
2 Addis Ababa Institute of Technology, Addis Ababa, Ethiopia
3 Universiti Teknologi PETRONAS, Perak, Malaysia
* e-mail: firstname.lastname@example.org
Accepted: 9 February 2019
Structural topology optimization problems have been formulated and solved to minimize either compliance or weight of a design domain under volume or stress constraints. The introduction of three-dimensional analysis is a more realistic approach to many applications in industry and research, but most of the developments in stress-based topology optimization are two-dimensional. This article presents an extension of two-dimensional stress-based topology optimization into three-dimensional using SIMP method. The article includes a mathematical model for three-dimensional stress-based topology optimization problems and sensitivity analysis. The article also includes finite element analysis used to compute stress induced in the design domains. The developed model is validated using benchmark problems and the results are compared with three-dimensional compliance-based formulation. From the results, it was clear that the developed model can generate optimal topologies that can sustain applied loads under the boundary conditions defined.
Key words: Topology optimization / stress constraints / 3D modeling / FEA
© H.S. Gebremedhen et al., published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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