Theoretical modelling of magnetoelectric effects in multi-push-pull mode Metglas/piezo-fibre laminates

A theoretical model is presented for magnetoelectric (ME) effects in multi-push-pull mode magnetostrictive/piezo-fibre laminate composites. Analytical solutions for the ME coefficient (αME) were derived. The effects of thickness ratio of the magnetostrictive phase, Kapton and multiple layers of epoxy on the value of αME were discussed. Experimental results agreed well with the theoretical analysis. When the thickness ratio of the magnetostrictive phase was v = 0.63, αME was found to have a maximum value of 25.6 V cm-1 Oe-1. For thinner Kapton and epoxy layers, the values of αME became higher. This model presents theoretical guidelines by which one can achieve higher values of αME.