Results of strain rate and temperature on mechanical properties of selected structural steels

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Abstract

The article presents results of application of Rusinek-Klepaczko (RK) constitutive equation for the purposes of modelling of mechanical behaviour of four grades of structural steels. In order to calibrate the RK model a series of compression tests at wide range of strain rates 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. It was concluded that at low temperatures the thermally activated mechanisms of plastic deformation results in the strong strain rate hardening effects, whereas at high temperatures they are limited. © 2013 The Authors.

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Moćko, W., & Kruszka, L. (2013). Results of strain rate and temperature on mechanical properties of selected structural steels. In Procedia Engineering (Vol. 57, pp. 789–797). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2013.04.100

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