Experimental investigation on magneto-rheological elastomers

Abstract

The paper describes an experimental investigation conducted on Magneto-Rheological Elastomers (MRE); these materials, consisting of an elastomeric matrix containing ferromagnetic particles, are considered smart material as it is possible to control their mechanical properties by means of an applied magnetic field. The first part of the experimental activity consisted in preparing the equipment to form samples. The sample were tested by means of experimental set-up, developed to carry on some load tests. In particular, the samples were subjected to constant compression loads and to a periodic shear load. The set-up is equipped with a coil, with which it is possible to vary the intensity of the magnetic field crossing the sample under test, to evaluate its effect on the characteristics of the material with reference to stiffness and damping.