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The paper presents the results of experimental testing by magnetic-pulse method of
Cu-ETP samples with crack type macro defect. Three-dimensional modeling of the magnetic
field in the loading device -sample system was performed, on the basis of which the magnetic
pressure was calculated and mechanical simulation was performed with Johnson-Cook
plasticity model and fracture criteria. Comparison of the obtained results of residual
deformation indicates the applicability of Johnson Cook plasticity model for OFHC copper
for describing the behavior of Copper ETP in the deformation rate range up to 104 1/s.
Keywords: high speed deformation, magnetic-pulse loading, Johnson-Cook plasticity model |
full paper (pdf, 1104 Kb)