Additive manufacturing of interlocking glass masonry units

In comparison to traditional glass casting, glass additive manufacturing (AM) presents an opportunity to increase design flexibility and reduce tooling costs for the production of highly variable geometries. While the latter has been extensively explored for masonry units, there is minimal research...

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Main Authors: Massimino, Daniel, Townsend, Ethan, Folinus, Charlotte, Stern, Michael, Becker, Kaitlyn
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:English
Published: Springer International Publishing 2024
Online Access:https://hdl.handle.net/1721.1/156928
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author Massimino, Daniel
Townsend, Ethan
Folinus, Charlotte
Stern, Michael
Becker, Kaitlyn
author2 Massachusetts Institute of Technology. Department of Mechanical Engineering
author_facet Massachusetts Institute of Technology. Department of Mechanical Engineering
Massimino, Daniel
Townsend, Ethan
Folinus, Charlotte
Stern, Michael
Becker, Kaitlyn
author_sort Massimino, Daniel
collection MIT
description In comparison to traditional glass casting, glass additive manufacturing (AM) presents an opportunity to increase design flexibility and reduce tooling costs for the production of highly variable geometries. While the latter has been extensively explored for masonry units, there is minimal research on the former for its viability to produce structural building components. This paper encompasses design, manufacturing, and experimental testing to assess the feasibility of using glass AM to produce interlocking masonry units for the construction industry. The glass 3D printer employed in this study is capable of printing a maximum volume of 32.5 × 32.5 × 38 cm–suitable for producing full-size masonry units. As part of this work, we discuss how to adapt design guidelines for glass AM to produce interlocking units. To evaluate fabrication ease and structural performance, three fabrication methods, Fully Hollow, Print-Cast, and Fully Printed, are compared. To compare the accuracy, repeatability, and structural capacity of each masonry unit, geometric analysis, surface roughness, and mechanical testing is conducted. Results varied by fabrication method, with average strength ranging from 3.64− 42.3 MPa for initial fracture and 64.0–118 MPa for ultimate strength. Accuracy in print dimensions was less than 1 mm with a standard deviation of 0.14–1.6 mm. Results demonstrated that Fully Hollow masonry units provide a more immediate path to implementation, while Fully Printed units have the potential to provide an entirely glass, transparent, and circular building component fabrication method.
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spelling mit-1721.1/1569282025-02-14T15:42:02Z Additive manufacturing of interlocking glass masonry units Massimino, Daniel Townsend, Ethan Folinus, Charlotte Stern, Michael Becker, Kaitlyn Massachusetts Institute of Technology. Department of Mechanical Engineering In comparison to traditional glass casting, glass additive manufacturing (AM) presents an opportunity to increase design flexibility and reduce tooling costs for the production of highly variable geometries. While the latter has been extensively explored for masonry units, there is minimal research on the former for its viability to produce structural building components. This paper encompasses design, manufacturing, and experimental testing to assess the feasibility of using glass AM to produce interlocking masonry units for the construction industry. The glass 3D printer employed in this study is capable of printing a maximum volume of 32.5 × 32.5 × 38 cm–suitable for producing full-size masonry units. As part of this work, we discuss how to adapt design guidelines for glass AM to produce interlocking units. To evaluate fabrication ease and structural performance, three fabrication methods, Fully Hollow, Print-Cast, and Fully Printed, are compared. To compare the accuracy, repeatability, and structural capacity of each masonry unit, geometric analysis, surface roughness, and mechanical testing is conducted. Results varied by fabrication method, with average strength ranging from 3.64− 42.3 MPa for initial fracture and 64.0–118 MPa for ultimate strength. Accuracy in print dimensions was less than 1 mm with a standard deviation of 0.14–1.6 mm. Results demonstrated that Fully Hollow masonry units provide a more immediate path to implementation, while Fully Printed units have the potential to provide an entirely glass, transparent, and circular building component fabrication method. 2024-09-23T19:32:33Z 2024-09-23T19:32:33Z 2024-09-16 2024-09-22T03:14:15Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/156928 Massimino, D., Townsend, E., Folinus, C. et al. Additive manufacturing of interlocking glass masonry units. Glass Struct Eng (2024). PUBLISHER_CC en https://doi.org/10.1007/s40940-024-00279-8 Glass Structures & Engineering Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer International Publishing Springer International Publishing
spellingShingle Massimino, Daniel
Townsend, Ethan
Folinus, Charlotte
Stern, Michael
Becker, Kaitlyn
Additive manufacturing of interlocking glass masonry units
title Additive manufacturing of interlocking glass masonry units
title_full Additive manufacturing of interlocking glass masonry units
title_fullStr Additive manufacturing of interlocking glass masonry units
title_full_unstemmed Additive manufacturing of interlocking glass masonry units
title_short Additive manufacturing of interlocking glass masonry units
title_sort additive manufacturing of interlocking glass masonry units
url https://hdl.handle.net/1721.1/156928
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AT beckerkaitlyn additivemanufacturingofinterlockingglassmasonryunits