EPJ Web of Conferences
Volume 94, 2015DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Number of page(s)||4|
|Published online||07 September 2015|
Effect of strain rate and temperature on mechanical properties of selected building Polish steels
1 Motor Transport Institute, 80, Jagiellońska st., 03-301 Warsaw, Poland
2 Gen. Jaroslaw Dabrowski Military University of Technology, 2, Gen. Sylwester Kaliski st., 00-908 Warsaw, Poland
a Corresponding author: firstname.lastname@example.org
Published online: 7 September 2015
Currently, the computer programs of CAD type are basic tool for designing of various structures under impact loading. Application of the numerical calculations allows to substantially reduce amount of time required for the design stage of such projects. However, the proper use of computer aided designing technique requires input data for numerical software including elastic-plastic models of structural materials. This work deals with the constitutive model developed by Rusinek and Klepaczko (RK) applied for the modelling of mechanical behaviour of selected grades structural St0S, St3SX, 18GS and 34GS steels and presents here results of experimental and empirical analyses to describe dynamic elastic-plastic behaviours of tested materials at wide range of temperature. In order to calibrate the RK constitutive model, series of compression tests at wide range of strain rates, including static, quasi-static and dynamic investigations at lowered, room and elevated temperatures, were carried out using two testing stands: servo-hydraulic machine and split Hopkinson bar. The results were analysed to determine influence of temperature and strain rate on visco-plastic response of tested steels, and show good correlation with experimental data.
© Owned by the authors, published by EDP Sciences, 2015
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