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Bistable Auxetic System -- Programming synclastic curvature into 2D Patterning

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Abstract

This research aims to provide a new way of thinking about the ever-expanding quest in architecture to deliver free-form geometry. Rather than relying on complex formwork, the proposed reconfigurable system can translate free form synclastic surfaces to pre-programmed 2D configuration, providing an attractive potential for the building industry. The work draws inspiration from the transformation process of auxetic materials and embeds this within a bi-stable mechanism. Starting from fundamental geometric research of linear hinges and out-of-plane rotation, geometrical constraints are identified thoroughly for the length-preserving transformation (Bottom-up process). Computation strategies to generate the locations of linear hinges from target discrete curvature are informed by the constraints and further optimized through prototype fabrication(Top-down process). Accompanying the pattern generation, a design strategy based on the Gauss map and parallel mesh is also developed to explore the given constraints of materiality and constructability(Bottom-up process again). Finally, practical proposals in three different contexts, namely, vertical screens, flexible molding, and self-supporting shell structures are designed to exhibit the wide-ranging applications of this system.

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Description

132 pages

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Date Issued

2020-12

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Keywords

Auxetic material; Bi-stable mechanism; Deployable structure; Reconfigurable architecture

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Union Local

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Committee Chair

Sabin, Jenny E.

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Committee Member

Miller, Martin Fields

Degree Discipline

Architecture

Degree Name

M.S., Architecture

Degree Level

Master of Science

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Government Document

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dissertation or thesis

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