TY - JOUR
T1 - Fire testing of grade 304 stainless steel plate material under transient-state conditions
AU - Farmani, Mohammad Amin
AU - Du, Xingchen
AU - Heidarpour, Amin
AU - Zhao, Xiao-Ling
PY - 2021/9
Y1 - 2021/9
N2 - 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.
AB - 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.
U2 - 10.1002/cepa.1434
DO - 10.1002/cepa.1434
M3 - Article
SN - 2509-7075
VL - 4
SP - 1371
EP - 1376
JO - ce/papers
JF - ce/papers
IS - 2-4
ER -