Torsional Loadings of a Semi-Infinite Perfectly Conducting Elastic Half Space

Abstract

The problem of torsional oscillations of a semi infinite perfectly conducting elastic medium with an applied magnetic filed normal to the boundary due to (i) an impulsive load,(ii) step load, and (iii) sinusoidal load are solved. In the case of impulsive loading over a circular region, the duration of disturbance at a point is greater than in the case of a purely elastic materials. The width of distribution is the same in both the cases.