Скачать или смотреть Prof. Nicholas Fang / Three Dimensional Photonic Manufacturing of Architectured Metamaterials

TII Metamaterials and Applications Seminar 2021 – Nicholas Fang - Massachusetts Institute of Technology

The scientific breakthroughs of data and interconnectivity driven manufacturing may lead to a paradigm shift of design and processing multifunctional elements at unprecedented precision and heterogeneity. These multifunctional elements can be exemplified by the emerging architectured metamaterials with integrated functions that are desirable for a broad array of applications in confined spaces, including impact absorption, thermal management and chemical processing, optical transparency, structural morphing, as well as real time monitoring and repair. An integrated knowledge base is crucial for setting up, steering and analyzing the functionality by combining different geometry and choices of the digital voxels with domain-specific design constraints, together with a library of such accurate designer voxels with predictive analytics that capture essential mechanical and physical properties based on the microstructure. In this talk, I will present our research progress on scalable three dimensional micro/nanofabrication techniques to enable design and exploration of digitally coded multifunctional and multimaterial lightweight metastructures at unprecedented dimensions. The microscale resolution and multi-material capabilities of the 3D printing system and the modeling tools developed can be used to design and fabricate architected materials for combined functions, including energy absorption, actuation/morphing, and micro-scale bioreactors for tissue engineering. I will also discuss the development of engineered, three dimensional arrays of copolymer fibers that serve as mimetics of neuronal axons, using a combination of materials engineering and high resolution 3D microfabrication, which enable study of OPC engagement and subsequent myelination in vitro.