dc.contributor.author | Sakhaei, Amir Hosein | |
dc.contributor.author | Lee, Howon | |
dc.contributor.author | Dunn, Conner K. | |
dc.contributor.author | Dunn, Martin L. | |
dc.contributor.author | Ge, Qi | |
dc.contributor.author | Fang, Xuanlai | |
dc.date.accessioned | 2017-04-24T20:26:53Z | |
dc.date.available | 2017-04-24T20:26:53Z | |
dc.date.issued | 2016-08 | |
dc.date.submitted | 2016-04 | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/108386 | |
dc.description.abstract | We present a new 4D printing approach that can create high resolution (up to a few microns), multimaterial shape memory polymer (SMP) architectures. The approach is based on high resolution projection microstereolithography (PμSL) and uses a family of photo-curable methacrylate based copolymer networks. We designed the constituents and compositions to exhibit desired thermomechanical behavior (including rubbery modulus, glass transition temperature and failure strain which is more than 300% and larger than any existing printable materials) to enable controlled shape memory behavior. We used a high resolution, high contrast digital micro display to ensure high resolution of photo-curing methacrylate based SMPs that requires higher exposure energy than more common acrylate based polymers. An automated material exchange process enables the manufacture of 3D composite architectures from multiple photo-curable SMPs. In order to understand the behavior of the 3D composite microarchitectures, we carry out high fidelity computational simulations of their complex nonlinear, time-dependent behavior and study important design considerations including local deformation, shape fixity and free recovery rate. Simulations are in good agreement with experiments for a series of single and multimaterial components and can be used to facilitate the design of SMP 3D structures. | en_US |
dc.description.sponsorship | Singapore. National Research Foundation (SUTD-MIT International Design Centre (IDC)) | en_US |
dc.description.sponsorship | SUTD-MIT International Design Centre (IDC) (Start-up Research Grant) | en_US |
dc.description.sponsorship | Chinese Academy of Sciences. State Key Laboratory of Nonlinear Mechanics. Institute of Mechanics (LNM Open Fund) | en_US |
dc.language.iso | en_US | |
dc.publisher | Nature Publishing Group | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1038/srep31110 | en_US |
dc.rights | Creative Commons Attribution 4.0 International License | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.source | Nature | en_US |
dc.title | Multimaterial 4D Printing with Tailorable Shape Memory Polymers | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Ge, Qi et al. “Multimaterial 4D Printing with Tailorable Shape Memory Polymers.” Scientific Reports 6.1 (2016): n. pag. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | en_US |
dc.contributor.mitauthor | Ge, Qi | |
dc.contributor.mitauthor | Lee, Howon | |
dc.contributor.mitauthor | Fang, Xuanlai | |
dc.relation.journal | Scientific Reports | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Ge, Qi; Sakhaei, Amir Hosein; Lee, Howon; Dunn, Conner K.; Fang, Nicholas X.; Dunn, Martin L. | en_US |
dspace.embargo.terms | N | en_US |
dc.identifier.orcid | https://orcid.org/0000-0001-5713-629X | |
mit.license | PUBLISHER_CC | en_US |