SIMPLE CONSTITUTIVE-EQUATIONS FOR STEEL AT HIGH-TEMPERATURE

被引:181
作者
KOZLOWSKI, PF [1 ]
THOMAS, BG [1 ]
AZZI, JA [1 ]
HAO, W [1 ]
机构
[1] UNIV ILLINOIS,DEPT MECH & IND ENGN,URBANA,IL 61801
来源
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1992年 / 23卷 / 03期
关键词
D O I
10.1007/BF02675567
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work develops and investigates simple unified constitutive equations to model the mechanical behavior of plain carbon steel in the austenite temperature region for use in finite element stress analysis of processes such as continuous casting. Four different forms of constitutive relations are considered: constant structure, time-hardening, strain-hardening, and simultaneous time- and strain-hardening models. Each relation is judged on its ability to reproduce experimental data from both tensile and creep tests and its ability to exhibit reasonable behavior under complex loading conditions. Three of the equations appear suitable for small strain monotonic loading conditions for a wide range of low strain rates (10(-3) to 10(-6) s-1), high temperatures (950-degrees-C to 1400-degrees-C), and varying carbon contents (0.005 to 1.54 wt pct C).
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页码:903 / 918
页数:16
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