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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)
ce/papers ; 4 ; 1371-1376
2021-09-01
6 pages
Article (Journal)
Electronic Resource
English
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