About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing and Cellular/Lattice Structures: Designs, Realization and Applications
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Presentation Title |
Enabling Novel Porous Noise Absorbers via Additive Manufacturing |
Author(s) |
Bhisham Sharma |
On-Site Speaker (Planned) |
Bhisham Sharma |
Abstract Scope |
Porous materials are frequently used for acoustic insulation applications. The open cellular architecture dissipates incident acoustic energy via frequency-dependent visco-inertial and thermal loss mechanisms. While currently used noise reduction materials—such as cellular foams and glass-fibers—provide good sound absorption properties at affordable costs, their fabrication process results in batch-to-batch property variations. Further, their low mechanical stiffness and inability to sustain high-pressure, high-temperature environments limits their use for advanced engineering applications. In this presentation, I discuss our recent work on using low-cost additive manufacturing methods to design multifunctional noise absorbers. Our work shows that additive manufacturing can enable the fabrication of novel porous architectures that overcome the limitations of traditional materials while providing comparable acoustic performance. I will discuss the state-of-art and current fabrication challenges. |