| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing and Cellular/Lattice Structures: Designs, Realization and Applications
|
| Presentation Title |
3D Printed Fibrous Cellular Multifunctional Structures |
| Author(s) |
William Johnston, Janith Godakawela, Carlos Gatti, Suresh Keshavanarayana, Bhisham Sharma |
| On-Site Speaker (Planned) |
William Johnston |
| Abstract Scope |
Engineering designs frequently result in antithetical performance requirements. For instance, while foams with smaller pore sizes can provide better noise reduction performance, their use in applications such as computer fan noise reduction is typically infeasible because of airflow requirements to ensure heat dissipation. Here, we introduce the idea of utilizing fibrous structures as a solution to meet such contrasting design requirements. Using our recently demonstrated method of printing fibrous geometries using extrusion-based printing methods, we add an internal fibrous mesh to an open-cellular, load-bearing scaffolding structure. The addition of the fibrous mesh drastically increases the acoustic absorption, while minimally increasing the flow resistance. We also study the effect of the fiber mesh on the energy absorption capabilities of the scaffolding structure. Our work shows that the addition of a fibrous mesh can help improve functional and mechanical properties with minimal weight and flow penalties. |