Our proposed SBFE-BESO framework has successfully been applied to traditional single-material design and can be further extended to multi-material configuration design. By incorporating a material interpolation scheme, it enables the creation of complex geometric designs for composite structures.
Smoothed 3D Donut-shaped
for 2 phase-materials.
Smoothed 3D Donut-shaped
for 3 phase-materials.
The SBFE-BESO approach has been further developed for applications in manufacturing. By utilizing an iso-surface function based on the marching cubes algorithm, the obtained topological results feature smooth geometric boundaries, making them directly suitable for constructing 3D printing prototypes.
3D Tower under torsional loading.
Smoothed 3D Tower under MC algorithm.
Our investigation has found that static response-based topology optimization can lead to impractical designs when subjected to multiple loading conditions. To address this issue, we developed a dynamic response topology optimization approach that focuses on crucial peak points to reduce computational time. Additionally, we utilized commercial software, Fusion 360, to refine the boundaries and achieve a smoother final design.
3D cantilever beam under two impulses.
3D Hammerhead structure under three dynamic loads.
This work introduces the integration of an advanced numerical technique, the image-based Scaled Boundary Finite Element Method (SBFEM), with Bi-directional Evolutionary Structural Optimization (BESO) to solve topology optimization problems. The proposed approach enables adaptive mesh design for linear elastic materials under static loading (elastostatic), significantly reducing computational effort.
2D circular-shaped structure under torsional loading.
2D rectangular beam with double circular perforations.