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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202008082
|2 doi
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|a pubmed24n1088.xml
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|a DE-627
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|a eng
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| 100 |
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|a Mirzaali, Mohammad J
|e verfasserin
|4 aut
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| 245 |
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|a Curvature Induced by Deflection in Thick Meta-Plates
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 28.07.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a The design of advanced functional devices often requires the use of intrinsically curved geometries that belong to the realm of non-Euclidean geometry and remain a challenge for traditional engineering approaches. Here, it is shown how the simple deflection of thick meta-plates based on hexagonal cellular mesostructures can be used to achieve a wide range of intrinsic (i.e., Gaussian) curvatures, including dome-like and saddle-like shapes. Depending on the unit cell structure, non-auxetic (i.e., positive Poisson ratio) or auxetic (i.e., negative Poisson ratio) plates can be obtained, leading to a negative or positive value of the Gaussian curvature upon bending, respectively. It is found that bending such meta-plates along their longitudinal direction induces a curvature along their transverse direction. Experimentally and numerically, it is shown how the amplitude of this induced curvature is related to the longitudinal bending and the geometry of the meta-plate. The approach proposed here constitutes a general route for the rational design of advanced functional devices with intrinsically curved geometries. To demonstrate the merits of this approach, a scaling relationship is presented, and its validity is demonstrated by applying it to 3D-printed microscale meta-plates. Several applications for adaptive optical devices with adjustable focal length and soft wearable robotics are presented
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|a Journal Article
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|a 3D printing
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|a Gaussian curvature
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|a auxeticity
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| 650 |
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4 |
|a functional materials
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| 650 |
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4 |
|a mechanical metamaterials
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| 700 |
1 |
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|a Ghorbani, Aref
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nakatani, Kenichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nouri-Goushki, Mahdiyeh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tümer, Nazli
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Callens, Sebastien J P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Janbaz, Shahram
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Accardo, Angelo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bico, José
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Habibi, Mehdi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zadpoor, Amir A
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 30 vom: 05. Juli, Seite e2008082
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:33
|g year:2021
|g number:30
|g day:05
|g month:07
|g pages:e2008082
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|u http://dx.doi.org/10.1002/adma.202008082
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