Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility
The origin of negative Poisson's ratio in rutile-type oxides and fluorides is explored through density functional theory (DFT) simulation. The study highlights the dominant role of nearest-neighbor central force interactions, thereby inspiring the design of a new three-dimensional (3D) mechanic...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-02-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S026412752030976X |
| _version_ | 1818337128775417856 |
|---|---|
| author | Y. Yao Y. Ni L.H. He |
| author_facet | Y. Yao Y. Ni L.H. He |
| author_sort | Y. Yao |
| collection | DOAJ |
| description | The origin of negative Poisson's ratio in rutile-type oxides and fluorides is explored through density functional theory (DFT) simulation. The study highlights the dominant role of nearest-neighbor central force interactions, thereby inspiring the design of a new three-dimensional (3D) mechanical metamaterial by mimicking the bond structure via elastic beams. Analytical expressions for the effective Poisson's ratio and compressibility are derived and validated by finite element computations. Numerical results indicate that the material can exhibit simultaneously negative Poisson's ratio and negative linear, area, or volume compressibility. The negative Poisson's ratio is conformed experimentally, and the parametric spaces leading to negative compressibilities are identified explicitly. |
| first_indexed | 2024-12-13T14:50:18Z |
| format | Article |
| id | doaj.art-49a55c88174c4e99b5ab61ec95a180d5 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-13T14:50:18Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-49a55c88174c4e99b5ab61ec95a180d52022-12-21T23:41:21ZengElsevierMaterials & Design0264-12752021-02-01200109440Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibilityY. Yao0Y. Ni1L.H. He2CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, ChinaCAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, ChinaCorresponding author.; CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, ChinaThe origin of negative Poisson's ratio in rutile-type oxides and fluorides is explored through density functional theory (DFT) simulation. The study highlights the dominant role of nearest-neighbor central force interactions, thereby inspiring the design of a new three-dimensional (3D) mechanical metamaterial by mimicking the bond structure via elastic beams. Analytical expressions for the effective Poisson's ratio and compressibility are derived and validated by finite element computations. Numerical results indicate that the material can exhibit simultaneously negative Poisson's ratio and negative linear, area, or volume compressibility. The negative Poisson's ratio is conformed experimentally, and the parametric spaces leading to negative compressibilities are identified explicitly.http://www.sciencedirect.com/science/article/pii/S026412752030976XMechanical metamaterialsRutile crystal structureNegative Poisson's ratioNegative compressibility |
| spellingShingle | Y. Yao Y. Ni L.H. He Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility Materials & Design Mechanical metamaterials Rutile crystal structure Negative Poisson's ratio Negative compressibility |
| title | Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility |
| title_full | Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility |
| title_fullStr | Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility |
| title_full_unstemmed | Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility |
| title_short | Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility |
| title_sort | rutile mimic 3d metamaterials with simultaneously negative poisson s ratio and negative compressibility |
| topic | Mechanical metamaterials Rutile crystal structure Negative Poisson's ratio Negative compressibility |
| url | http://www.sciencedirect.com/science/article/pii/S026412752030976X |
| work_keys_str_mv | AT yyao rutilemimic3dmetamaterialswithsimultaneouslynegativepoissonsratioandnegativecompressibility AT yni rutilemimic3dmetamaterialswithsimultaneouslynegativepoissonsratioandnegativecompressibility AT lhhe rutilemimic3dmetamaterialswithsimultaneouslynegativepoissonsratioandnegativecompressibility |