|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Effect of Current Carrying Length in Electric Pulse Aided Deformation
||Subrahmanyam Adabala, Dakaiah Munugala, Rahul Verma, Venkata Reddy Nallagundla
|On-Site Speaker (Planned)
Application of electric pulses during plastic deformation of a metal results in reduction of flow stress. Flow stress reduction can be due to both thermal and athermal effects. Increase in the mobility of dislocations due to electron wind is known as electroplastic effect. In existing work on electric pulse aided tensile tests, current is applied through the entire specimen and it contributes to higher joule heating. In this work, electric pulse aided tensile tests are carried out on a newly designed specimens with a provision to apply the electric current through specified deformation zone of the specimen to reduce the overall joule heating. Finite element simulations are carried out to validate the specimen geometry in terms of stress strain behaviour. Experimental result shows that there is a significant effect of current carrying length on instantaneous stress (from 70 MPa to 122.5 MPa for 60mm and 30mm lengths respectively).
||Definite: At-meeting proceedings