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Dynamic Tensile Behaviour and Full Field Strain Measurement of High Strength Steel
Abstract:
Uniaxial tensile tests were conducted on high strength steel 600 (HS600) in Split-Hopkinson Tension Bar at different strain rates in the range of 1100 to 3200s-1and in electromechanical universal testing machine at the strain rate of 1.1×10-3s-1. Digital image correlation was used together with high-speed photography to obtain full-field displacement and strain in the tensile specimens at dynamic strain rate tests. This high strength steel shows significant strain rate sensitivity. Based on the experimental results, the material parameters of Johnson-Cook model are determined. This model fits the experimental data well in the plastic zone.
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1859-1865
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Online since:
January 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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