Abstract
The purpose of this chapter is to investigate the mechanical properties of a structural steel under quasi-static and dynamic loads. Specimens of as-received low-carbon mild steel are tested on universal testing machine to study their stress-strain behavior under quasi-static tension (0.001s−1) and compression (−0.001 s−1). Then, the specimens are tested under split Hopkinson pressure bar (SHPB) and modified Hopkinson bar (MHB) to study their material properties under dynamic compressive (−550, −800s−1) and tensile (250, 500s−1) loading, respectively. The material parameters of the existing Johnson-Cook model are determined. Finally, the applicability of the existing Johnson-Cook material model to represent the mechanical behavior of mild steel in plastic zone is examined.
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Acknowledgments
Authors thank D. Forni and M. Dotta of the DynaMat Laboratory, University of Applied Sciences of Southern Switzerland for the help in some experiments. The research was financially supported by the Indo-Swiss Joint Research Program sponsored by the “Department of Science and Technology” of India and “Swiss State Secretariat of Education and Research” of Switzerland.
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Singh, N.K., Cadoni, E., Singha, M.K., Gupta, N.K. (2013). Mechanical Behavior of a Structural Steel at Different Rates of Loading. In: Chakraborty, S., Bhattacharya, G. (eds) Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012). Springer, India. https://doi.org/10.1007/978-81-322-0757-3_57
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DOI: https://doi.org/10.1007/978-81-322-0757-3_57
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