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An Experimental Study on Biaxial Tensile Characteristics of ETFE Film and Stress Relaxation of Tension Typed Membrane Structures
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 Title & Authors
An Experimental Study on Biaxial Tensile Characteristics of ETFE Film and Stress Relaxation of Tension Typed Membrane Structures
Kim, Seung-Deog; Jeong, Eul-Seok; Kawabata, Masaya;
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Until recently, almost all ETFE film structures that have been erected is the cushion type because there are problems at lower allowable strength under elastic range and viscosity behaviour such as creep and relaxation of ETFE films under long-term stresses. But the number of tension type structures is currently increasing. This paper proposes the stretch fabrication of ETFE film to verify the applicability of ETFE films to tensile membrane structures. First of all, to investigate the possibility of application on tensile membrane structures, the stretch fabrication test is carried out, and it is verified that it is possible to increase the yield strength of the film membrane structures. After simulating the experiment also carries out an analytical investigation, and the effectiveness of the elasto-plastic analysis considering the viscous behavior of the film is investigated. Finally, post-aging tension measurement is conducted at the experimental facilities, and the viscosity behavior resulting from relaxation is investigated with respect to tensile membrane structures.
ETFE Film;Stretch fabrication;Biaxial tensile test;Tension type;Viscosity behavior;Stress relaxation;
 Cited by
Y. Tsuboi, M. Kawaguchi, M. Sasaki, R. Uek i, T. Takeuchi, M. Kawabata, K. Kawaguchi, Y. Kanebakok, Mechanics.Material.Structural Design, Kenchiku-gijutsu Company, Japan, 2012, pp. 214(in Japanese)

S. J. Lee, S. R. Lee, "Tensile Strength Characteristics fo ETFE Roof Material in Large Membrane Structures", Journal of KASS, Vol. 10, No. 1, 2010, pp. 51-58

J. Y. Kim, J. W. Kang, "Tensile Test and Creep Tests of ETFE Membrane", Journal of KASS, Vol. 10, No. 3, 2010, pp. 57-64

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E. S. Jeong, M. Kawabata, S. D. Kim, "Experimental and Analytical Study on High Stress of Tensile Membrane Structures by Stretch Fabrication Using ETFE Film", Journal of KASS, Vol. 14, No. 3, 2014, pp. 85-92

M. Kawabata, E. S. Jeong, "Study on Three Dimensional Fabrication of ETFE Film Panel by Stretching - Part 1:Outline of Fabrication by Stretching", Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, 2008, pp. 931-932(in Japanese)

Committee on Testing Methods for Membrane Materials, Method for Elastic Constants of Membrane Materials, Membrane Structures Association of Japan, 1995, pp. (in Japanese)