Dynamic Behaviour of Reinforcing Steel Bars in Tension

Abstract:

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In this paper the preliminary results of the tensile behavior of reinforced steel in a large range of strain rates are presented. Tensile testing at several strain rates, using different experimental set-ups, was carried out. For the quasi-static tests a universal electromechanical testing machine with the maximum load-bearing capacity of 50 kN was used, while for the intermediate and high-strain rate regimes a hydro-pneumatic apparatus and a JRC-Split Hopkinson Tensile Bar respectively were used. The target strain rates were set at the following five levels: 10-3, 30, 250, 500, and 1000 1/s. The specimens used in this research were round samples having 3mm in diameter and 5mm of gauge length obtained from reinforcing bars. Finally, the material parameters for Cowper-Symonds and Johnson-Cook models were determined.

Info:

Periodical:

Edited by:

Ezio Cadoni and Marco di Prisco

Pages:

86-91

DOI:

10.4028/www.scientific.net/AMM.82.86

Citation:

E. Cadoni et al., "Dynamic Behaviour of Reinforcing Steel Bars in Tension", Applied Mechanics and Materials, Vol. 82, pp. 86-91, 2011

Online since:

July 2011

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$35.00

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