Visco-Plastic Constitutive Equation of ETFE Film - Examination on the Stress- Strain relationships of Uniaxial and Biaxial Tensile Deformation
Author(s): |
Eul-Seok Jeong
Masaya Kawabata |
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Medium: | conference paper |
Language(s): | English |
Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Published in: | IABSE-IASS 2011 London Symposium Report |
Year: | 2011 |
Abstract: |
This paper presents an examination of the validity of a viscoplastic constitutive equation combining kinematic hardening creep theory and nonlinear kinematic hardening theory in order to describe the viscoplastic behavior of ETFE film. A viscoplastic constitutive equation compared with experiment al results for stress-strain relationship of the film, as it pertains to strain rate dependence and the plastic region. And then, the stress-strain relationship in annealed film was also investigated to determine post-yield structural behavior. |
Keywords: |
membrane structures ETFE film strain-rate dependence annealing stretching visco-plastic constitutive equation
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