| Summary |
In the reported creep experiment, it was confirmed that mechanical property of ETFE film has stress dependency besides temperature and time dependency.The yield stress and Young's modulus on this kind of material vary depending on the load condition.Therefore, the material constant has to be adjusted according to temperature and strain rate in the analysis evaluated by Elasto-plasticity. This research clarifies the viscoelastic characteristic of ETFE film through dynamic viscoelastic test, and proposes an analytical method by which stress-strain properties can be continuously captured as one viscoelastic behavior.
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