3D printed grid shell in ice composite

Arno D.C. Pronk, Irma Bouw, Tessa Ezendam, Naomi Z. van Hierden, Joris Vleeshouwers, Dominique van der Weijden

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
139 Downloads (Pure)

Abstract

This paper presents the design of a grid shell that is made of fibre reinforced ice and constructed by combining additive manufacturing with an inflatable mould. While previous fibre reinforced ice structures were constructed by spraying, additive manufacturing with ice has not yet been tested before. Additive manufacturing is a stepwise production technique where material is being added layer by layer, resulting in a high degree of formability. Combining this printing technique with sustainable materials such as ice makes it possible to develop more sustainable structures and building applications in cold environments such as Mars or the poles. To test this application, a grid shell of fibre reinforced ice was designed and eventually constructed. The grid shell was designed by considering the design constraints of the inflatable mould that needed to support the wet ice layers during construction. The structural capacity of the grid shell was enhanced by performing an optimization procedure on the gridlines. In the end, a theoretical failure load calculation shows that the middle part of the structure could carry more than 6000 kg of additional load. To test this finding, the constructed grid shell was loaded on site with approximately 3000 kg, without showing any signs of failure. By designing and testing this innovative object, this project illustrates that additive manufacturing can successfully be applied for other structural applications such as sculptures, moulding and Mars missions.

Original languageEnglish
Title of host publicationIASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
EditorsCarlos Lazaro, Kai-Uwe Bletzinger, Eugenio Onate
PublisherInternational Center for Numerical Methods in Engineering (CIMNE)
Pages1341-1348
Number of pages8
ISBN (Electronic)9788412110104
Publication statusPublished - 6 Oct 2019
EventIASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE - Barcelona, Spain
Duration: 7 Oct 201910 Oct 2019

Conference

ConferenceIASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
Country/TerritorySpain
CityBarcelona
Period7/10/1910/10/19

Bibliographical note

Publisher Copyright:
Copyright © 2019 by Arno PRONK, Irma BOUW, Tessa EZENDAM, Naomi v HIERDEN, Joris VLEESHOUWERS, Dominique vd WEIJDEN Published by the International Association for Shell and Spatial Structures (IASS) with permission.

Keywords

  • Additive manufacturing
  • Fibre reinforced ice
  • Grid shell
  • Inflatable formwork
  • Optimization

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