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Vol. 45 (2004) No. 3 December n. 146


Hangai Prize 2004 - A New Biaxial Test Protocol for Architectural Fabrics

< Table of Contents for Vol. 45 (2004) No. 3 December n. 146
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 45 (2004) No. 3 December n. 146
  • Pages: 175-181
  • Title: Hangai Prize 2004 - A New Biaxial Test Protocol for Architectural Fabrics
  • Author(s): B. N. Bridgens and P. D. Gosling
  • Keywords: Architectural fabric, biaxial test, residual strain, response surface.
Abstract
A new biaxial test protocol for architectural fabrics is proposed. Application of prestress followed by mechanical conditioning provides repeatable stress-strain data suitable for medium to long term structural design. The test protocol efficiently populates the space of feasible stress states; it is not limited to a few specified stress ratios. A method of removing residual strain from the test data is developed to prevent skewing of the response surface. It is proposed that strain-strain-stress data is combined with residual strain data to provide an accurate model of the non-linear behaviour of architectural fabrics, without any limiting plane-stress assumptions.

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