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Strain Rate Behavior

  1. Aug 19, 2007 #1

    Astronuc

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    Staff: Mentor

    I received a PM regarding the effect of strain rate on the performance of a metal, and how one calculates the strain rate of a material or component for e.g. A36 Steel, a common structural steel.

    As I understand the matter, someone wants to study the impact of processing (really microstructure) on the deformation behavior of A36 steel.

    Slow deformation rates implies creep, while high deformation rates imply impact loading and highly nonlinear behavior. Strain hardening is also a factor.


    In a complex structure, there will be parts of the structure in compression, tension, bending and shear.

    See page 60 of this report -
    http://www.dot.state.fl.us/research-Center/Completed_Proj/Summary_STR/FDOT_BC354_23_rpt.pdf

    And page 17/143 of
    http://www.osti.gov/bridge/purl.cover.jsp?purl=/801157-VkjoSu/webviewable/ and use 'right mouse button' and select 'save target as'.

    In the second document, look for the phrase 'Cowper-Symonds equation and coefficients'

    With respect to the effect of strain rate on structural/material performance, this might be of use -
    http://www.euro-inox.org/pdf/auto/StructuralAutomotiveApp_EN.pdf

    http://www.euro-inox.org/pdf/auto/Nordberg_EN.pdf

    http://www.dynamore.de/download/af05/papers/B-III-01.pdf

    and some other useful references, which contain more useful references
    http://www.md.kth.se/~ulfs/Conferences/NafemsWC2005/69_StrainRate.pdf

    http://www.shotpeening.org/ICSP/icsp-7-28.pdf
     
    Last edited: Aug 19, 2007
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