Poisson's ratio material distributions: Variable Poisson's ratio material systems for adaptive building applications

Daekwon Park, Juhun Lee, Alejandra Romo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

The Poisson's ratio of materials describes the ratio of the transverse to axial strain. While most materials exhibit non-negative Poisson ratio, here we focus on the topological properties of negative ratio materials also known as auxetic constructs. Digital modelling and physical fabrication are employed to generate and test experimental auxetic configurations. The first set of studies employ 2D space-filling tessellations integrating both negative and positive Poisson ratio cells. The tessellations are designed through binary state transitions and gradual morphing transitions. A second set of studies explores the topological optimization of a single negative Poisson cell configuration following the logic that a cell constitutes the building block of auxetic materials. The third set of studies focuses on the translation of heterogeneous Poisson ratio 2D tessellations into 3D constructs. Here, two methods of fabrication are explored: lamination method and cellular grading. The precision of the cellular grading method renders it particularly suitable for multi-material 3D printing fabrication which is theoretically studied and proposed. Space-filling heterogeneous tessellation studies are applied to architectural and product design proposals. These proposals exhibit properties that could serve to design and develop further research on real-world applications.

Original languageEnglish (US)
Title of host publicationCAADRIA 2015 - 20th International Conference on Computer-Aided Architectural Design Research in Asia
Subtitle of host publicationEmerging Experiences in the Past, Present and Future of Digital Architecture
EditorsMarc Aurel Schnabel, Christiane M. Herr, Sawako Kaijima, Mi Jeong Kim, Dominik Holzer, Yasushi Ikeda
PublisherThe Association for Computer-Aided Architectural Design Research in Asia (CAADRIA)
Pages735-744
Number of pages10
ISBN (Electronic)9789881902665
StatePublished - Jan 1 2015
Externally publishedYes
Event20th International Conference on Computer-Aided Architectural Design Research in Asia: Emerging Experiences in the Past, Present and Future of Digital Architecture, CAADRIA 2015 - Daegu, Korea, Republic of
Duration: May 20 2015May 23 2015

Publication series

NameCAADRIA 2015 - 20th International Conference on Computer-Aided Architectural Design Research in Asia: Emerging Experiences in the Past, Present and Future of Digital Architecture

Conference

Conference20th International Conference on Computer-Aided Architectural Design Research in Asia: Emerging Experiences in the Past, Present and Future of Digital Architecture, CAADRIA 2015
CountryKorea, Republic of
CityDaegu
Period5/20/155/23/15

Keywords

  • Auxetic material
  • Cellular structure
  • Material distribution
  • Negative poisson's ratio
  • Optimization

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Software

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  • Cite this

    Park, D., Lee, J., & Romo, A. (2015). Poisson's ratio material distributions: Variable Poisson's ratio material systems for adaptive building applications. In M. A. Schnabel, C. M. Herr, S. Kaijima, M. J. Kim, D. Holzer, & Y. Ikeda (Eds.), CAADRIA 2015 - 20th International Conference on Computer-Aided Architectural Design Research in Asia: Emerging Experiences in the Past, Present and Future of Digital Architecture (pp. 735-744). (CAADRIA 2015 - 20th International Conference on Computer-Aided Architectural Design Research in Asia: Emerging Experiences in the Past, Present and Future of Digital Architecture). The Association for Computer-Aided Architectural Design Research in Asia (CAADRIA).