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Development of stress-strain relationships of cold formed lightweight steel at elevated temperature
In the scope of the European research project dealing with fire behaviour of cold formed lightweight steel structures, an important part of the work was focused on mechanical material properties of this steel at elevated temperatures. In order to get a range of information as wide as possible, three types of steel from different European countries, with different thickness, have been investigated by means of following tensile tests: steady state tests at room temperature and at different temperature levels; transient state anisothermal tests with various constant stress levels. On the basis of obtained experimental results a mathematical model for describing stress-strain relationships of cold formed lightweight steel at elevated temperatures up to 1000 deg C was drawn. The results of this work showed clearly that the fire resistance of steel used for load-bearing members are much better than that for non load-bearing members. The developed material model was then applied in the numerical model to simulate the fire behaviour of various types of tested cold formed lightweight steel members from which the validity of the material model has been approved.
Development of stress-strain relationships of cold formed lightweight steel at elevated temperature
In the scope of the European research project dealing with fire behaviour of cold formed lightweight steel structures, an important part of the work was focused on mechanical material properties of this steel at elevated temperatures. In order to get a range of information as wide as possible, three types of steel from different European countries, with different thickness, have been investigated by means of following tensile tests: steady state tests at room temperature and at different temperature levels; transient state anisothermal tests with various constant stress levels. On the basis of obtained experimental results a mathematical model for describing stress-strain relationships of cold formed lightweight steel at elevated temperatures up to 1000 deg C was drawn. The results of this work showed clearly that the fire resistance of steel used for load-bearing members are much better than that for non load-bearing members. The developed material model was then applied in the numerical model to simulate the fire behaviour of various types of tested cold formed lightweight steel members from which the validity of the material model has been approved.
Development of stress-strain relationships of cold formed lightweight steel at elevated temperature
Entwicklung der Spannungs-Dehnungsbeziehungen von kaltverformtem Leichtbaustahl bei erhöhter Temperatur
Mecozzi, E. (Autor:in) / Zhao, B. (Autor:in)
2005
9 Seiten, 8 Bilder, 5 Tabellen, 5 Quellen
Aufsatz (Konferenz)
Englisch
Development of stress-strain relationships of cold formed lightweight steel at elevated temperatures
| British Library Conference Proceedings | 2005
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