Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion
The aim of this paper is to (1) introduce an approach, called Polytope Sector-based Synthesis, for synthesizing 2D or 3D microstructural architectures that exhibit a desired bulk-property directionality (e.g., isotropic, cubic, orthotropic, etc.), and (2) provide general analytical methods that can...
| Main Authors: | , , , |
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| Format: | Article |
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ASME International
2018
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| Online Access: | http://hdl.handle.net/1721.1/119212 https://orcid.org/0000-0001-5713-629X |
| _version_ | 1811078508133220352 |
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| author | Spadaccini, Christopher M. Hopkins, Jonathan B. Fang, Xuanlai Lee, Howon |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Spadaccini, Christopher M. Hopkins, Jonathan B. Fang, Xuanlai Lee, Howon |
| author_sort | Spadaccini, Christopher M. |
| collection | MIT |
| description | The aim of this paper is to (1) introduce an approach, called Polytope Sector-based Synthesis, for synthesizing 2D or 3D microstructural architectures that exhibit a desired bulk-property directionality (e.g., isotropic, cubic, orthotropic, etc.), and (2) provide general analytical methods that can be used to rapidly optimize the geometric parameters of these architectures such that they achieve a desired combination of bulk thermal conductivity and thermal expansion properties. Although the methods introduced can be applied to general beam-based microstructural architectures, we demonstrate their utility in the context of an architecture that can be tuned to achieve a large range of extreme thermal expansion coefficients — positive, zero, and negative. The material-property-combination region that can be achieved by this architecture is determined within an Ashby-material-property plot of thermal expansion vs. thermal conductivity using the analytical methods introduced. Both 2D and 3D versions of the design have been fabricated using projection microstereolithography. |
| first_indexed | 2024-09-23T11:01:16Z |
| format | Article |
| id | mit-1721.1/119212 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:01:16Z |
| publishDate | 2018 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/1192122022-09-27T16:32:50Z Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion Spadaccini, Christopher M. Hopkins, Jonathan B. Fang, Xuanlai Lee, Howon Massachusetts Institute of Technology. Department of Mechanical Engineering Fang, Xuanlai Lee, Howon The aim of this paper is to (1) introduce an approach, called Polytope Sector-based Synthesis, for synthesizing 2D or 3D microstructural architectures that exhibit a desired bulk-property directionality (e.g., isotropic, cubic, orthotropic, etc.), and (2) provide general analytical methods that can be used to rapidly optimize the geometric parameters of these architectures such that they achieve a desired combination of bulk thermal conductivity and thermal expansion properties. Although the methods introduced can be applied to general beam-based microstructural architectures, we demonstrate their utility in the context of an architecture that can be tuned to achieve a large range of extreme thermal expansion coefficients — positive, zero, and negative. The material-property-combination region that can be achieved by this architecture is determined within an Ashby-material-property plot of thermal expansion vs. thermal conductivity using the analytical methods introduced. Both 2D and 3D versions of the design have been fabricated using projection microstereolithography. United States. Department of Energy (Contract DE-AC52-07NA27344) 2018-11-19T21:56:01Z 2018-11-19T21:56:01Z 2015-08 2018-11-15T18:19:49Z Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-5708-3 http://hdl.handle.net/1721.1/119212 Hopkins, Jonathan B., Howon Lee, Nicholas X. Fang, and Christopher M. Spadaccini. “Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion.” Volume 2B: 41st Design Automation Conference (August 2, 2015), Boston, Massachusetts, USA, 2015. © ASME International 2015 https://orcid.org/0000-0001-5713-629X http://dx.doi.org/10.1115/DETC2015-46645 Volume 2B: 41st Design Automation Conference Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International ASME |
| spellingShingle | Spadaccini, Christopher M. Hopkins, Jonathan B. Fang, Xuanlai Lee, Howon Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title | Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title_full | Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title_fullStr | Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title_full_unstemmed | Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title_short | Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion |
| title_sort | polytope sector based synthesis and analysis of microarchitectured materials with tunable thermal conductivity and expansion |
| url | http://hdl.handle.net/1721.1/119212 https://orcid.org/0000-0001-5713-629X |
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