Tensile and compressive behaviour of S355 mild steel in a wide range of strain rates

Cadoni, Ezio and Forni, Daniele and Gieleta, Roman and Kruszka, Leopold (2018) Tensile and compressive behaviour of S355 mild steel in a wide range of strain rates. UNSPECIFIED. The European Physical Journal Special Topics, 227 (1). pp. 29-43.

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Abstract

This paper presents a comparison between mechanical compressive and tensile properties of S355 structural (mild) steel in a wide range of strain rates. A split Hopkinson pressure bar apparatus is used to investigate the dynamic compressive behaviour at high strain rates (740--5880 s‚àí1). A hydro-pneumatic machine (5--25 s‚àí1) and a modified split Hopkinson tensile bar apparatus (300--850 s^-1) are used to study the strain rate sensitivity under dynamic tension. Quasi-static tensile and compressive tests are conducted on a universal electromechanical testing machine. The model parameters of two commonly used constitutive equations (Johnson--Cook and Cowper--Symonds) are also compared, separately for each model during compression and tension deformations.

Item Type:	Scientific journal article, Newspaper article or Magazine article
Subjects:	Engineering Engineering > Civil engineering Engineering > Civil engineering > Structural engineering
Department/unit:	Dipartimento ambiente costruzioni e design > Laboratorio Dynamat
Depositing User:	Ezio Cadoni
Date Deposited:	01 Oct 2018 06:55
Last Modified:	01 Oct 2018 06:55
URI:	http://repository.supsi.ch/id/eprint/9805

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