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Experimental investigation of austenitic stainless steel material at elevated temperatures
HighlightsTensile tests of flat and corner regions under elevated temperatures were carried out.The accuracy of the two-stage Ramberg-Osgood model remained to be further improved.Mechanical properties parameters at elevated temperatures given in Eurocode were unsafe.The reduction factor of the plate material is lower than that of the corner material.Formulas of reduction factor of mechanical properties were proposed.
AbstractBased on S30408 austenitic stainless steel, the mechanical properties of materials in flat and corner regions were investigated by steady state tests and transient state tests at elevated temperatures. The stress-strain curves of stainless steel at elevated temperatures obtained by the two test methods were compared and analysed. The results show that the mechanical properties of stainless steel obtained by the two test methods are approximately equivalent when the temperatures are lower than 700°C; otherwise, the mechanical properties obtained by the two test methods are not completely equivalent. The formulae of the reduction coefficient of mechanical properties of stainless steel at elevated temperatures were put forward. The influences of strain hardening indices nθ and mθ on the stress-strain curves of stainless steel at elevated temperatures were simulated. The results show that there are large deviations in the strain hardening indices obtained by different tests.
Experimental investigation of austenitic stainless steel material at elevated temperatures
HighlightsTensile tests of flat and corner regions under elevated temperatures were carried out.The accuracy of the two-stage Ramberg-Osgood model remained to be further improved.Mechanical properties parameters at elevated temperatures given in Eurocode were unsafe.The reduction factor of the plate material is lower than that of the corner material.Formulas of reduction factor of mechanical properties were proposed.
AbstractBased on S30408 austenitic stainless steel, the mechanical properties of materials in flat and corner regions were investigated by steady state tests and transient state tests at elevated temperatures. The stress-strain curves of stainless steel at elevated temperatures obtained by the two test methods were compared and analysed. The results show that the mechanical properties of stainless steel obtained by the two test methods are approximately equivalent when the temperatures are lower than 700°C; otherwise, the mechanical properties obtained by the two test methods are not completely equivalent. The formulae of the reduction coefficient of mechanical properties of stainless steel at elevated temperatures were put forward. The influences of strain hardening indices nθ and mθ on the stress-strain curves of stainless steel at elevated temperatures were simulated. The results show that there are large deviations in the strain hardening indices obtained by different tests.
Experimental investigation of austenitic stainless steel material at elevated temperatures
Fan, Shenggang (author) / Jia, Lianlian (author) / Lyu, Xiao (author) / Sun, Wenjun (author) / Chen, Meihe (author) / Zheng, Jiacheng (author)
Construction and Building Materials ; 155 ; 267-285
2017-08-08
19 pages
Article (Journal)
Electronic Resource
English
Experimental investigation of austenitic stainless steel material at elevated temperatures
| British Library Online Contents | 2017
Experimental investigation of austenitic stainless steel material at elevated temperatures
| British Library Online Contents | 2017
Experimental investigation of austenitic stainless steel material at elevated temperatures
| British Library Online Contents | 2017
Experimental investigation of austenitic stainless steel material at elevated temperatures
| Online Contents | 2017
Experimental investigation of austenitic stainless steel material at elevated temperatures
| British Library Online Contents | 2017