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Some Results on the Dynamic Deformation of Copper

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High Velocity Deformation of Solids

Summary

The influence of strain rate and strain rate history on the mechanical behaviour of copper single crystals has been studied by means of compression tests. The shear strain rate range 10-4s-1–8 103s-1 has been investigated. Dynamic tests were performed with an Hopkins on bar.

The strain rate behaviour can be divided into 2 regions. Above 103s-1 a linear relationship between shear stress and shear strain rates is observed. This can be explained by a viscous damping of dislocations. Static curves are sometimes over the dynamic ones depending of the strain rate.

Tests performed with change of strain rate have shown that strain rate history memory is never lost.

Results are compared with those obtained by tensile tests.

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Author information

Authors and Affiliations

  1. Commissariat à l’Energie Atomique, Service Métallurgie, B.P.N°511-15, 75015, Paris, France

    M. Stelly & R. Dormeval

Authors
  1. M. Stelly
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  2. R. Dormeval
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Editor information

Editors and Affiliations

  1. Department of Materials, Institute of Space and Aeronautical Science, University of Tokyo, Japan

    Kozo Kawata (Professor) (Professor)

  2. Department of Aeronautics, Faculty of Engineering, University of Tokyo, Japan

    Jumpei Shioiri (Professor) (Professor)

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© 1979 Springer-Verlag, Berlin/Heidelberg

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Stelly, M., Dormeval, R. (1979). Some Results on the Dynamic Deformation of Copper. In: Kawata, K., Shioiri, J. (eds) High Velocity Deformation of Solids. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67208-8_7

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  • DOI: https://doi.org/10.1007/978-3-642-67208-8_7

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-67210-1

  • Online ISBN: 978-3-642-67208-8

  • eBook Packages: Springer Book Archive

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