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Plastic Deformation and the temperature rise

Plastic Deformation and the temperature rise

Plastic Deformation and the temperature rise

(OP)
Can anyone suggest about "How to find temperature rise during severe plastic deformation of a metal" say during torsion or any other deformation  process ?

RE: Plastic Deformation and the temperature rise

The area under the stress strain curve is an energy per unit volume.  If you assume a perfectly plastic material and uniform deformation,

q = σεpV

Also if it is adiabatic

q = mcpΔT

If all the energy input is dissipate as heat

ΔT=σεp/(ρcp)

If you have a less simple case, the idea is the same but it takes a little more work. Of course, as always watch the units.


 

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