A novel design of mechanical metamaterial incorporating multiple negative indexes
Mechanical metamaterials that combine multiple negative properties are rare, but have great appeal for applications in multipurpose devices. Herein, a novel metamaterial incorporating negative Poisson’s ratio, negative compressibility, and negative thermal expansion or swelling was proposed. The uni...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/accf02 |
| _version_ | 1797746452642922496 |
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| author | Yu Yao Ling Hui He Jian Hai Jin Jun Ding |
| author_facet | Yu Yao Ling Hui He Jian Hai Jin Jun Ding |
| author_sort | Yu Yao |
| collection | DOAJ |
| description | Mechanical metamaterials that combine multiple negative properties are rare, but have great appeal for applications in multipurpose devices. Herein, a novel metamaterial incorporating negative Poisson’s ratio, negative compressibility, and negative thermal expansion or swelling was proposed. The unit cell was designed by simulating the bond structure of lead monoxide crystals using elastic beams. Analytical models for the mechanical responses of the unit cell were established, and expressions for Young’s modulus, thermal expansion, Poisson’s ratio, and compressibility were derived and confirmed by numerical simulations. The results showed that the metamaterial not only displayed a negative Poisson’s ratio but also had negative linear and area compressibilities as well as negative linear, area, and volume thermal expansions if the geometric parameters were properly adjusted. Furthermore, metamaterials with negative linearity and area swelling were obtained experimentally by replacing the thermal expansion of the material with the water absorption expansion of a hydrogel. Such metamaterials with multiple negative indexes are expected to contribute to the feasibility of advanced multifunctional devices with mechanical, pressure, temperature, and moisture sensitivities. |
| first_indexed | 2024-03-12T15:37:03Z |
| format | Article |
| id | doaj.art-2319ad58ddb942c5afcba8762d1295fc |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:37:03Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-2319ad58ddb942c5afcba8762d1295fc2023-08-09T16:08:54ZengIOP PublishingMaterials Research Express2053-15912023-01-0110505580110.1088/2053-1591/accf02A novel design of mechanical metamaterial incorporating multiple negative indexesYu Yao0https://orcid.org/0000-0002-6005-5009Ling Hui He1https://orcid.org/0000-0002-8661-4411Jian Hai Jin2Jun Ding3Taihu Laboratory of Deepsea Technological Science, Wuxi, 214028, People’s Republic of China; China Ship Scientific Research Center, Wuxi, 214028, People’s Republic of ChinaCAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaTaihu Laboratory of Deepsea Technological Science, Wuxi, 214028, People’s Republic of China; China Ship Scientific Research Center, Wuxi, 214028, People’s Republic of ChinaTaihu Laboratory of Deepsea Technological Science, Wuxi, 214028, People’s Republic of China; China Ship Scientific Research Center, Wuxi, 214028, People’s Republic of ChinaMechanical metamaterials that combine multiple negative properties are rare, but have great appeal for applications in multipurpose devices. Herein, a novel metamaterial incorporating negative Poisson’s ratio, negative compressibility, and negative thermal expansion or swelling was proposed. The unit cell was designed by simulating the bond structure of lead monoxide crystals using elastic beams. Analytical models for the mechanical responses of the unit cell were established, and expressions for Young’s modulus, thermal expansion, Poisson’s ratio, and compressibility were derived and confirmed by numerical simulations. The results showed that the metamaterial not only displayed a negative Poisson’s ratio but also had negative linear and area compressibilities as well as negative linear, area, and volume thermal expansions if the geometric parameters were properly adjusted. Furthermore, metamaterials with negative linearity and area swelling were obtained experimentally by replacing the thermal expansion of the material with the water absorption expansion of a hydrogel. Such metamaterials with multiple negative indexes are expected to contribute to the feasibility of advanced multifunctional devices with mechanical, pressure, temperature, and moisture sensitivities.https://doi.org/10.1088/2053-1591/accf02mechanical metamaterialslead monoxide crystalnegative poisson’s rationegative compressibilitynegative thermal expansionnegative swelling |
| spellingShingle | Yu Yao Ling Hui He Jian Hai Jin Jun Ding A novel design of mechanical metamaterial incorporating multiple negative indexes Materials Research Express mechanical metamaterials lead monoxide crystal negative poisson’s ratio negative compressibility negative thermal expansion negative swelling |
| title | A novel design of mechanical metamaterial incorporating multiple negative indexes |
| title_full | A novel design of mechanical metamaterial incorporating multiple negative indexes |
| title_fullStr | A novel design of mechanical metamaterial incorporating multiple negative indexes |
| title_full_unstemmed | A novel design of mechanical metamaterial incorporating multiple negative indexes |
| title_short | A novel design of mechanical metamaterial incorporating multiple negative indexes |
| title_sort | novel design of mechanical metamaterial incorporating multiple negative indexes |
| topic | mechanical metamaterials lead monoxide crystal negative poisson’s ratio negative compressibility negative thermal expansion negative swelling |
| url | https://doi.org/10.1088/2053-1591/accf02 |
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