The results of experimental investigations and the method of digital image correlation are used to investigate the variations of the mechanical characteristics of the material of thermally hardened steel reinforcement across the thickness of a bar. The conventional and true stress–strain diagrams of the solid reinforcement and standard specimens made of this reinforcement are plotted. We determine the specific fracture energy for different zones of thermally hardened reinforcement. The necessity of taking into account the variations of the mechanical characteristics across the thickness of the bar in the design of building structures and the advantages of application of the specific fracture energy as an invariant characteristic of the material are demonstrated.
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Published in Fizyko-Khimichna Mekhanika Materialiv, Vol. 50, No. 6, pp. 50–54, November–December, 2014.
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Zhang, Q., Mol’kov, Y.V., Sobko, Y.М. et al. Determination of the Mechanical Characteristics and Specific Fracture Energy of Thermally Hardened Reinforcement. Mater Sci 50, 824–829 (2015). https://doi.org/10.1007/s11003-015-9789-9
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DOI: https://doi.org/10.1007/s11003-015-9789-9