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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Tension & Membrane Structures

Structural design of membrane structure using plastic stretch and heat shrink of ETFE film

< Table of Contents for Tension & Membrane Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Tension & Membrane Structures
  • Pages: 10
  • Title: Structural design of membrane structure using plastic stretch and heat shrink of ETFE film
  • Author(s): Masaya Kawabata, Toshinobu Takemura, Soichiro Furutani
  • Keywords: plastic, shrink, true stress, true strain, equivalent strain, relaxation, yield stress
Abstract
In order to establish three dimensional curved surface fabrication technique by stretching plane film, this paper discusses the elastic-plastic characteristic of ETFE film and its evaluation method, and considers the example and effect of the curved surface fabrication by stretching. Around 10% stretch is the optimal since yield strength per unit width serves as an extreme. It is checked that smooth curved surface has been formed with target rise near 10% as a result of three dimensional elongations, and that the stable rigidity had been acquired.

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