The Dynamic Mechanical Properties of Oxygen Free Copper under the Impact Load

Qing Feng Liu; Ning Chang Wang; Lan Yan; Feng Jiang; Hui Huang

doi:10.4028/www.scientific.net/AMR.1136.543

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1136The Dynamic Mechanical Properties of Oxygen Free...

The Dynamic Mechanical Properties of Oxygen Free Copper under the Impact Load

Abstract:

The dynamic mechanical properties of oxygen free copper has been tested under the different strain rate (4700s-1~21000s-1) at the room temperature by split Hopkinson pressure bar (SHPB), the true stress-true strain curves has been obtained. Power-Law constitutive model and Johnson-Cook constitutive model have been built to fit the experimental result from SHPB test of oxygen free copper, meanwhile, the constitutive model can be applied to the simulation analysis of cutting process. The results show that the oxygen free copper is sensitive to the strain rate. In addition, the Johnson-Cook constitutive model predicts the plastic flow stress of the oxygen free copper more accurately than the Power-Law constitutive model at the high strain rate.

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Periodical:

Advanced Materials Research (Volume 1136)

Pages:

543-548

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1136.543

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Online since:

January 2016

Authors:

Qing Feng Liu, Ning Chang Wang, Lan Yan, Feng Jiang*, Hui Huang

Keywords:

Constitutive Model, Impact Compression, Oxygen Free Copper, Split Hopkinson Pressure Bar

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