In this study an analytical method is developed to obtain the response of electro-magneto-thermo-elastic stress and perturbation of a magnetic field vector for a thick-walled spherical functionally graded piezoelectric material (FGPM). The hollow sphere, which is placed in a uniform magnetic field, is subjected to a temperature gradient, inner and outer pressures and a constant electric potenti...

This paper deals with the problem of identifying material parameters by measuring mechanical and/or thermal quantities. We propose different energy functions measuring the gap which exists between Analysis and Tests. They allow to compute indicators which will determine if a given set of experimentally obtained data is able to identify the desired thermal and/or mechanical material characterist...