We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Anisotropic Metallic Microlattice Structures for Underwater Operations.
- Authors
Chen Shen; Rohde, Charles; Cushing, Colby W.; Junfei Li; Zheng Jie Tan; Huifeng Du; Xiuyuan Peng; Wilson, Preston S.; Haberman, Michael R.; Fang, Nicholas X.; Cummer, Steven A.
- Abstract
Metamaterials have offered unprecedented potentials for wave manipulations. However, their applications in underwater acoustic wave control have remained largely unexplored. This is because of the limited material choices and the lack of reliable fabrication techniques for the complicated structures. Herein, a metamaterial with microlattice structures as the building blocks is proposed for underwater operations. By designing the building blocks of the metamaterial and assembling them in a layered fashion, anisotropy is embedded in the structure, which results along different effective sound speeds in orthogonal directions. The designed metamaterial is fabricated by metal additive manufacturing using aluminum and steel. Experiments are performed using a resonator tube to evaluate its performance in water. An anisotropy ratio of around 2 is achieved, which is in good agreement with numerical simulations. The proposed metamaterial provides an effective means for underwater sound control with reduced fabrication difficulties and increased service life.
- Subjects
SUBMERGED structures; SPEED of sound; UNDERWATER acoustics; SOUND waves; SERVICE life; ELECTRON beam furnaces
- Publication
Advanced Engineering Materials, 2023, Vol 25, Issue 6, p1
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.202201294