Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials
Abstract This research explores the development and modeling of an underwater acoustic cloak utilizing pentamode metamaterials. The primary objective is to design a structure that acoustically mimics water, enabling the guidance of waves in such a way that the target object is acoustically cloaked....
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| Format: | Article |
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-11501-0 |
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| author | Fatemeh Ahmadzadeh Ali Bahrami Mansour Zaremanesh |
| author_facet | Fatemeh Ahmadzadeh Ali Bahrami Mansour Zaremanesh |
| author_sort | Fatemeh Ahmadzadeh |
| collection | DOAJ |
| description | Abstract This research explores the development and modeling of an underwater acoustic cloak utilizing pentamode metamaterials. The primary objective is to design a structure that acoustically mimics water, enabling the guidance of waves in such a way that the target object is acoustically cloaked. Initially, an aluminum-based frame arranged in a honeycomb lattice is designed, and its phononic band structure is analyzed. Elliptical-shaped masses are then embedded into the structure to tune its mechanical properties for optimal acoustic performance. Finite element method simulations demonstrate that the designed structure exhibits good agreement with wave propagation in water. Subsequently, the acoustic cloak is designed using graded variations in structural parameters, and its performance is evaluated within the frequency range of 1 to 3 kHz. The results show that the proposed structure can effectively reduce the total scattering cross section by a factor of two and successfully cloak an object with an approximate area of 34,880 mm². |
| format | Article |
| id | doaj-art-0b81bce9c23e45f0afe6e58cbd0c6b56 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-0b81bce9c23e45f0afe6e58cbd0c6b562025-08-20T03:42:28ZengNature PortfolioScientific Reports2045-23222025-07-0115111010.1038/s41598-025-11501-0Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterialsFatemeh Ahmadzadeh0Ali Bahrami1Mansour Zaremanesh2Optoelectronics and Nanophotonics Research Lab. (ONRL), Faculty of Electrical Engineering, Sahand University of TechnologyOptoelectronics and Nanophotonics Research Lab. (ONRL), Faculty of Electrical Engineering, Sahand University of TechnologyOptoelectronics and Nanophotonics Research Lab. (ONRL), Faculty of Electrical Engineering, Sahand University of TechnologyAbstract This research explores the development and modeling of an underwater acoustic cloak utilizing pentamode metamaterials. The primary objective is to design a structure that acoustically mimics water, enabling the guidance of waves in such a way that the target object is acoustically cloaked. Initially, an aluminum-based frame arranged in a honeycomb lattice is designed, and its phononic band structure is analyzed. Elliptical-shaped masses are then embedded into the structure to tune its mechanical properties for optimal acoustic performance. Finite element method simulations demonstrate that the designed structure exhibits good agreement with wave propagation in water. Subsequently, the acoustic cloak is designed using graded variations in structural parameters, and its performance is evaluated within the frequency range of 1 to 3 kHz. The results show that the proposed structure can effectively reduce the total scattering cross section by a factor of two and successfully cloak an object with an approximate area of 34,880 mm².https://doi.org/10.1038/s41598-025-11501-0Acoustic cloakingPentamode metamaterialsPhononic band structureWater-likeTotal scattering cross section |
| spellingShingle | Fatemeh Ahmadzadeh Ali Bahrami Mansour Zaremanesh Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials Scientific Reports Acoustic cloaking Pentamode metamaterials Phononic band structure Water-like Total scattering cross section |
| title | Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| title_full | Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| title_fullStr | Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| title_full_unstemmed | Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| title_short | Large-scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| title_sort | large scale underwater acoustic cloak based on honeycomb lattice pentamode metamaterials |
| topic | Acoustic cloaking Pentamode metamaterials Phononic band structure Water-like Total scattering cross section |
| url | https://doi.org/10.1038/s41598-025-11501-0 |
| work_keys_str_mv | AT fatemehahmadzadeh largescaleunderwateracousticcloakbasedonhoneycomblatticepentamodemetamaterials AT alibahrami largescaleunderwateracousticcloakbasedonhoneycomblatticepentamodemetamaterials AT mansourzaremanesh largescaleunderwateracousticcloakbasedonhoneycomblatticepentamodemetamaterials |