Strain-stress relationship for steels in extra-high temperatures in the context of computer simulation

摘要

The paper concerns the deformation of steel specimens in conditions, which are close to the transformation of state of aggregation. It presents the research leading to mathematical model of the process and contains the description of some problems concerning the determination of material properties at extra-high temperatures. The material behaviour during sudden changes of physical properties of the material is presented. Considerable part of the work has been sacrificed to the problem of determination of strain-stress relationship for the discussed temperature range. The methodology and results of the investigation are discussed.