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Fire testing of grade 304 stainless steel plate material under transient-state conditions
Owing to its superior performance at high temperatures, stainless steel is usually considered as a potential replacement for mild steel in a wide range of structural fire engineering applications. When it comes to the fire design of steel structures, time-dependent deformations occurring in the adequately-heated steel material, called “thermal creep” need to be somehow considered in the design calculations. In EUROCODE 3-1-2, for example, the thermal creep strains are implicitly included in the transiently-determined stress-strain curves for steel at elevated temperatures. Using the same approach, this paper investigates the fire-temperature mechanical properties of Grade 304 stainless steel by conducting transient tensile tests at temperatures of up to 900°C on standard coupons taken from a 3.0 mm thick plates. To simulate structural fire conditions in the transient tests, the temperature of the sample is steadily increased when a constant tensile load is applied. From these tests, strain-temperature curves are obtained, wherein the strain contains both mechanical and thermal components. The strain-temperature curves with the same heating rate of 10°C/min are then converted to elevated-temperature stress-strain curves suitable for fire design applications.
Fire testing of grade 304 stainless steel plate material under transient-state conditions
Owing to its superior performance at high temperatures, stainless steel is usually considered as a potential replacement for mild steel in a wide range of structural fire engineering applications. When it comes to the fire design of steel structures, time-dependent deformations occurring in the adequately-heated steel material, called “thermal creep” need to be somehow considered in the design calculations. In EUROCODE 3-1-2, for example, the thermal creep strains are implicitly included in the transiently-determined stress-strain curves for steel at elevated temperatures. Using the same approach, this paper investigates the fire-temperature mechanical properties of Grade 304 stainless steel by conducting transient tensile tests at temperatures of up to 900°C on standard coupons taken from a 3.0 mm thick plates. To simulate structural fire conditions in the transient tests, the temperature of the sample is steadily increased when a constant tensile load is applied. From these tests, strain-temperature curves are obtained, wherein the strain contains both mechanical and thermal components. The strain-temperature curves with the same heating rate of 10°C/min are then converted to elevated-temperature stress-strain curves suitable for fire design applications.
Fire testing of grade 304 stainless steel plate material under transient-state conditions
Farmani, Mohammad Amin (author) / Du, Xingchen (author) / Heidarpour, Amin (author) / Zhao, Xiao-Ling (author)
2021-09-01
Farmani , M A , Du , X , Heidarpour , A & Zhao , X-L 2021 , ' Fire testing of grade 304 stainless steel plate material under transient-state conditions ' , ce/papers , vol. 4 , no. 2-4 , pp. 1371-1376 . https://doi.org/10.1002/cepa.1434
Article (Journal)
Electronic Resource
English
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