Abstract
On the basis of the laws of conservation of energy and momentum of the electromagnetic field, by using the statistical approach and the formalism of equivalent tensions, we deduce the expressions for the densities of energy of electromagnetic fields accumulated in polarized and/or magnetized deformable bodies (reversible part) and absorbed by the bodies (irreversible part), as well as the expressions for the densities of ponderomotive (bulk) and surface forces and moments of forces. We compare these expressions (and, hence, the energy and force factors of the field) with the data available in the literature and analyze them for various materials and types of electromagnetic fields extensively used in engineering. The proposed factors are used for the determination of temperature fields and mechanical stresses caused by the analyzed electromagnetic actions according to the asymmetric theory of thermomechanics.
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