2 papers
physics.app-ph2021
Sound Absorption and Transmission Loss Properties of Open-Celled Aluminum Foams with Stepwise Relative Density Gradients
Amulya Lomte, Bhisham Sharma, Mary Drouin +1
We investigate the acoustical properties of uncompressed and compressed open-celled aluminum metal foams fabricated using a directional solidification foaming process. We compresse…
physics.app-ph2021
Additive Manufacturing of Fibrous Sound Absorbers
William Johnston, Bhisham Sharma
We investigate the possibility of additively manufacturing fibrous sound absorbers using fused deposition modeling. Two methods for 3D printing fibers are proposed. The fiber bridg…