Ding, Zhen ; Weeger, Oliver ; Qi, H. Jerry ; Dunn, Martin L. (2021)
4D rods: 3D structures via programmable 1D composite rods.
In: Materials and design, 2018, 137
doi: 10.26083/tuprints-00019837
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Slender 1D structures are ubiquitous in nature and engineering and serve as building blocks for 3D structures at scales ranging from molecular to architectural. 3D printing enables fabrication of such structures with geometrical complexity that cannot be produced easily by traditional manufacturing methods, but comes with a cost of long building time and need for supporting structures during printing. Some of these limitations are overcome here through an approach that prints 1D rods with composite cross-sections, programmed to deform into a prescribed 3D shape simply upon heating. The straight or curved composite rods consist of a glassy polymer and an elastomer that are bonded to each other as a result of the manufacturing process; the latter is programmed with a compressive stress during the printing process. When heated, the stiff glassy polymer softens, resulting in release of the stress in the elastomer, and causes the 1D structure to deform into a new permanent 3D configuration. The cross-section of the composite rods can be designed to enable deformation modes of bending and twisting, a combination of which can guide the 1D rod into almost any 3D shape. With the use of a nonlinear thermomechanical computational model, several 3D rod structures are designed and demonstrated, highlighting the potential for increased functionality with material and time savings.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Ding, Zhen ; Weeger, Oliver ; Qi, H. Jerry ; Dunn, Martin L. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | 4D rods: 3D structures via programmable 1D composite rods |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Publikationsdatum der Erstveröffentlichung: | 2018 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials and design |
| Jahrgang/Volume einer Zeitschrift: | 137 |
| DOI: | 10.26083/tuprints-00019837 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/19837 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | Slender 1D structures are ubiquitous in nature and engineering and serve as building blocks for 3D structures at scales ranging from molecular to architectural. 3D printing enables fabrication of such structures with geometrical complexity that cannot be produced easily by traditional manufacturing methods, but comes with a cost of long building time and need for supporting structures during printing. Some of these limitations are overcome here through an approach that prints 1D rods with composite cross-sections, programmed to deform into a prescribed 3D shape simply upon heating. The straight or curved composite rods consist of a glassy polymer and an elastomer that are bonded to each other as a result of the manufacturing process; the latter is programmed with a compressive stress during the printing process. When heated, the stiff glassy polymer softens, resulting in release of the stress in the elastomer, and causes the 1D structure to deform into a new permanent 3D configuration. The cross-section of the composite rods can be designed to enable deformation modes of bending and twisting, a combination of which can guide the 1D rod into almost any 3D shape. With the use of a nonlinear thermomechanical computational model, several 3D rod structures are designed and demonstrated, highlighting the potential for increased functionality with material and time savings. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-198378 |
| Zusätzliche Informationen: | 3D printing, 4D printing, Rod structures, Self-assembly, Active composite |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Cyber-Physische Simulation (CPS) |
| Hinterlegungsdatum: | 14 Dez 2021 10:09 |
| Letzte Änderung: | 15 Dez 2021 05:55 |
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| Suche nach Titel in: | TUfind oder in Google |
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- 4D rods: 3D structures via programmable 1D composite rods. (deposited 14 Dez 2021 10:09) [Gegenwärtig angezeigt]
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