Civil Engineering Reference
In-Depth Information
Fig. 6.35
Force results plot for EAF diffuse thermal model input for PS 4
Fig. 6.36
True stress plot for
EAF diffuse thermal model
input for PS 4 (experiment
vs. model simulation)
The simulation of the model for Parameter Set 4 versus the experimental data is
given in Fig.
6.36
.
As seen, the model accurately predicted the true stress/strain response until the first
application of electrical current. During the first application of current (i.e., first pulse)
and the subsequent applications, the model underpredicted the flow stress reduction.
The temperature input to the model assumed that the entire quantity of electrical energy
went to only Joule heating. Thus, the drop in stress is due to bulk thermal softening
and the electroplastic effect. For this model, it does not separate direct electrical effects
