| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Bird Humerus Bone-Inspired 3D Voronoi Frameworks: Optimization of Compressive Mechanical Performance by Genetic Algorithms
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| Author(s) |
Chien-Chih Lin, Po-Yu Chen |
| On-Site Speaker (Planned) |
Chien-Chih Lin |
| Abstract Scope |
Birds have evolved lightweight yet robust hollow humerus bones for long-duration flight. Inside these bones, mesh-like struts intricately span the internal framework, forming a three-dimensional Voronoi structure that distributes bending forces while minimizing material use. Inspired by birds’ humerus bones, we proposed a structural optimization method for three-dimensional Voronoi structures using genetic algorithms, in which the Voronoi structures underwent crossover, selection, and mutation to enhance mechanical properties. The results indicated the fitness value continued to decrease until convergence after 12 iterations, confirming that the global optimum was achieved. Experimental results from compression tests showed that the peak load of GA-optimized Voronoi structures increased approximately 40% compared to original ones. Simulation results confirmed that strain was evenly distributed within the structures, indicating efficient material use for structural support. Based on the geometrical analysis, the optimized designs demonstrated a re-orientation tendency, with more struts aligned parallel to the loading direction. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, Additive Manufacturing |