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  • 1975-1979  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Response of Cu single crystals to high loading rates (1976)
    Springer
    Czechoslovak journal of physics 26 (1976), S. 538-558 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The present paper deals with dynamic response of Cu single crystals to high loading rates. Cu crystals were loaded with transient stress waves along several crystallographic directions ([110], [100] and [¯135]). The response is expressed in terms of stress wave attenuation. The obtained results indicate that there are at least 2 basic regions where different mechanisms of plastic strain are working. The paper also involves a critical analysis of the used Hopkinson split bar technique. The analysis clearly indicates that the interpretation of experimental results can not be generally done by means of the functionσ(ε). The obtained results may be described in terms of relaxation processes, analogously as in case of shock waves. This procedure also makes possible to describe the results in terms of dislocation dynamics. The possible connection between elastic precursor decay curves and the stress distribution in a specimen loaded with the Hopkinson split bar technique is briefly outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01586886
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Response of Cu single crystals to high loading rates (1976)
    Springer
    Czechoslovak journal of physics 26 (1976), S. 559-564 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The slip geometry, the structure of slip markings and dislocation substructure of Cu single crystals in the region of slip bands are investigated. The strain rate expressively affects the form of the slip bands. The difference in form of slip markings is most expressive in specimens with orientation [011]. At high strain rates (〉103 s −1) wide deformation bands appear in these specimens that, from the macroscopic standpoint, are similar to twinning. It was found that the bands have their own slip structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01586887
    Signatur Availability
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    Paper (German National Licenses)
    Fulltext
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