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Effect of a high energy electrical pulse on the dynamic stress-strain behavior of a copper alloy |
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| Authors: | P.A. Sundaram M.G. Snow |
| Affiliation: | a Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, PR 00680, USA b Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA c Department of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA |
| Abstract: | Electromagnetic launchers (EML) dispatch projectiles at extreme velocities (Mach 7-8), using copper/copper alloy rails which are subjected to high rates of loading under a high energy electrical pulse. Results from Split Hopkinson Pressure Bar (SHPB) testing of a copper alloy at high strain rates in the order of 103 s− 1 with simultaneous application of a high energy electrical pulse show that the plastic deformation of the copper alloy is increased and a higher degree of work hardening is observed under these conditions. |
| Keywords: | Metals and alloys Mechanical properties Dynamic testing Electrical pulse |
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