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Mixed-variable topology optimization for shell-infill structures with adaptive coating thickness
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DOI：10.1016/j.cad.2025.103943.png)
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Abstract
En 中文
• A mixed-variable topology optimization method is proposed to design the base topology and adaptive coating thickness of shell-infill structures. • Discrete variable optimization is used to determine the structure's topology with a uniform coating thickness and a clear coating interface in each iteration. • Coating optimization is achieved through density-based topology optimization, incorporating a novel holeless coating constraint via a virtual temperature field. • The method achieves over 10% mass reduction compared to uniform coating structures and shows effectiveness and scalability in numerical examples, including a large-scale 3D case.
Keywords:
mixed-variable topology optimization
shell-infill structures
adaptive coating thickness
density-based topology optimization
holeless coating constraint
Journal
C
IF:
3.1
Papers:
3.1K
Citations:
6.4K
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