Mechanical strength testing of ethylene-tetrafluoroethylene film
| Autor: | S. N. Ovsyannikov, V. N. Okolichnyi |
|---|---|
| Rok vydání: | 2022 |
| Zdroj: | Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 24:89-98 |
| ISSN: | 2310-0044 1607-1859 |
| DOI: | 10.31675/1607-1859-2022-24-4-89-98 |
| Popis: | Mechanical strength testing of ethylene-tetrafluoroethylene (ETFE) film is performed on the test machine INSTRON. The average elastic modulus of the film is 35.8 MPa. Under subsequent loading, the elastic-to-plastic stage transition occurs with decreasing elastic modulus to 1.78–2.71 MPa and then to 0.06–0.086 MPa. Strength testing of the ETFE film 250 µm thick at 8.577 kPa uniformly distributed load does not lead to the film rupture either at positive (15–18 °С) or negative temperatures (–23–29 °С). A multiple damage of the film under an 8.50 kPa load at −26 °С does not lead to its disruption. The film bending at positive and negative temperatures reaches 84 and 58.2 mm, respectively. Strength testing of the ETFE film demonstrates its ultra-high strength properties, and thus predicts its wide use in the formation of comfortable conditions in buildings created in Arctic and other territories of Russia. |
| Databáze: | OpenAIRE |
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