Design and Structural Application of Thin-walled Hybrid Composites Inspired by Bamboo's Hierarchical Microstructure

Project: ResearchARG

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Here we propose to develop novel hierarchical cellular thin-walled composites by latest 3D printing technology coupled with high entropy alloys (HEAs) surface coating. Based on the insights we’ve obtained from our past three years’ R&D on bamboo-inspired materials design and 3D printing, we aim to further improve the mechanical properties and functionality of thin-walled composite structures by incorporating our recent breakthroughs in developing advanced HEA thin film coating. This hybrid structure of thin-walled composites mimics the microstructure of moso bamboo, in particular for its hierarchical distribution, reinforced node and cellular matrix configuration, with advanced HEA metallic coating for protection and strengthening. We will conduct the design with FEM modeling, followed by sensitivity analysis and design optimization. Upon the 3D printed core structures, HEA metallic coating will be applied by using our developed multi-target magnetron sputtering method. Multi-scale mechanical characterizations of the hybrid composites will be carried out, with the assist of in situ optical and SEM imaging for further improvement. The final prototype should be extremely light yet durable as compare to natural cellular materials, highly configurable and anti-corrosion. In the further stage, by collaborating with local industry and public R&D agencies, we will commercialize this products for industrial applications.


Effective start/end date1/06/17 → …