Magnetostriction is typically used for actuation and its reverse effect, known as the
magnetomechanical effect, for sensing. Giant magnetostrictive materials, such as
Terfenol-D, are capable of producing large strains when placed in a magnetic field and
changes in the magnetization on application of an applied stress. The present investigation
seeks to explore the novel idea of changing the magnetization of a Terfenol-D rod due to an
applied force under a defined pre-stress to investigate the suitability of transferring
appreciable amounts of magnetic energy to external media. Experimental investigations
have been carried out on a Terfenol-D monolithic rod under different levels of constant
pre-stress to quantitatively estimate the change in magnetic induction. It is shown that the
change in magnetic induction is very small compared with that for a permanent magnet.
Further, the inductive field is dependent on the dynamic behaviour of the Terfenol-D
rod.