Publications

Maximum Interior Voltage and Magnetic Field Penetration Through a Ferromagnetic Layer

Warne, Larry K.; Chen, Kenneth C.; Johnson, William Arthur.

This report examines the problem of magnetic penetration of a conductive layer, including nonlinear ferromagnetic layers, excited by an electric current filament. The electric current filament is, for example, a nearby wire excited by a lightning strike. The internal electric field and external magnetic field are determined. Numerical results are compared to various analytical approximations to help understand the physics involved in the penetration.