On anisotropic versions of three-dimensional pentamode metamaterials
Pentamode materials are artificial solids with elastic properties that approximate those of isotropic liquids. The corresponding three-dimensional mechanical metamaterials or ‘meta-liquids’ have recently been fabricated. In contrast to normal liquids, anisotropic meta-liquids are also possible—a pre...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/2/023029 |
| _version_ | 1827874458873888768 |
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| author | Muamer Kadic Tiemo Bückmann Robert Schittny Martin Wegener |
| author_facet | Muamer Kadic Tiemo Bückmann Robert Schittny Martin Wegener |
| author_sort | Muamer Kadic |
| collection | DOAJ |
| description | Pentamode materials are artificial solids with elastic properties that approximate those of isotropic liquids. The corresponding three-dimensional mechanical metamaterials or ‘meta-liquids’ have recently been fabricated. In contrast to normal liquids, anisotropic meta-liquids are also possible—a prerequisite for realizing many of the envisioned transformation-elastodynamics architectures. Here, we study several possibilities theoretically for introducing intentional anisotropy into three-dimensional pentamode metamaterials. In static continuum mechanics, the transition from anti-auxetic pentamode materials to auxetics is possible. Near this transition, in the dynamic case, approximately uniaxial versions of pentamode metamaterials deliver anisotropic longitudinal-wave phase velocities different by nearly a factor of 10 for realistically accessible microstructure parameters. |
| first_indexed | 2024-03-12T16:53:34Z |
| format | Article |
| id | doaj.art-5a1937f64c08425bbb4e18d56c9eeff7 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:53:34Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-5a1937f64c08425bbb4e18d56c9eeff72023-08-08T11:04:45ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115202302910.1088/1367-2630/15/2/023029On anisotropic versions of three-dimensional pentamode metamaterialsMuamer Kadic0Tiemo Bückmann1Robert Schittny2Martin Wegener3Institute of Applied Physics , Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, GermanyInstitute of Applied Physics , Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, GermanyInstitute of Applied Physics , Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, GermanyInstitute of Applied Physics , Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, Germany; Institute of Nanotechnology , Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, GermanyPentamode materials are artificial solids with elastic properties that approximate those of isotropic liquids. The corresponding three-dimensional mechanical metamaterials or ‘meta-liquids’ have recently been fabricated. In contrast to normal liquids, anisotropic meta-liquids are also possible—a prerequisite for realizing many of the envisioned transformation-elastodynamics architectures. Here, we study several possibilities theoretically for introducing intentional anisotropy into three-dimensional pentamode metamaterials. In static continuum mechanics, the transition from anti-auxetic pentamode materials to auxetics is possible. Near this transition, in the dynamic case, approximately uniaxial versions of pentamode metamaterials deliver anisotropic longitudinal-wave phase velocities different by nearly a factor of 10 for realistically accessible microstructure parameters.https://doi.org/10.1088/1367-2630/15/2/023029 |
| spellingShingle | Muamer Kadic Tiemo Bückmann Robert Schittny Martin Wegener On anisotropic versions of three-dimensional pentamode metamaterials New Journal of Physics |
| title | On anisotropic versions of three-dimensional pentamode metamaterials |
| title_full | On anisotropic versions of three-dimensional pentamode metamaterials |
| title_fullStr | On anisotropic versions of three-dimensional pentamode metamaterials |
| title_full_unstemmed | On anisotropic versions of three-dimensional pentamode metamaterials |
| title_short | On anisotropic versions of three-dimensional pentamode metamaterials |
| title_sort | on anisotropic versions of three dimensional pentamode metamaterials |
| url | https://doi.org/10.1088/1367-2630/15/2/023029 |
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