I would be grateful if anyone can share the Johnson-Cook constants for Steel (AISI 4137) with me or at least introduce a paper in which I can find out about these constants or this alloy's stress-strain curve.
You may refer to this paper on 4130 steel. It is somewhat less ductile but you can get a rough idea of how the parameters will look like. You can also refer to the cited Johnson-Cook model references in this paper for further reading.
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