Analysis of experimental data on the behavior of steel S275JR – Reliability of modern design

Development of a high temperature material model for grade s275jr steel

“…The fast occurrence of tertiary creep at lower stress levels for the same temperature was also observed in study [9] when comparing quantitative creep values.…”

“…Results from studies by Harmathy [16,19], and the corresponding creep model, Table 4. It can be seen that the studied alloy has a carbon content similar to the others, with the exception of Brnić's study [9] which used steel with a lower carbon content.…”

“…The only previous research data regarding creep behaviour of Grade S275 available in literature is given in a study by Brnić et al [9], in which a limited range of creep test data is presented in the form of an analytical creep model. Apart from one study [9], which is based on a steel alloy with very low carbon content, it seems that there is no other available research data on creep development in the high-temperature range for this grade of steel, which can be used to assess its creep properties and resilience in fire conditions.…”

“…Apart from one study [9], which is based on a steel alloy with very low carbon content, it seems that there is no other available research data on creep development in the high-temperature range for this grade of steel, which can be used to assess its creep properties and resilience in fire conditions. This fact represents the main motivation for conducting a new study of mechanical properties of S275JR steel at high temperatures, and especially its creep properties.…”

“…As previously mentioned, a study by Brnić et al [9] was selected for comparison, since it is based on tests of a S275JR alloy. A study by Kirby and Preston [2] was selected, since its test results represent the main background for the creation of the Eurocode 3 material model and its corresponding reduction factors.…”