EFFECT OF HEATING ON THE SUBSURFACE INHOMOGENEITY OF THE ELECTRIC AND MECHANICAL FIELDS IN DIELECTRICS

摘要

The relations of the local gradient theory of dielectrics based on the analysis of the process of local displacements of masses are used for the investigation of the stress-strain state and polarization of a hollow sphere. The surfaces of the sphere are free of force loads and may have different temperatures. It is shown that the relations of this nonlocal theory enable one to estimate the effect of the temperature gradient on the subsurface inhomogeneity of the fields of stresses, polarization, and bound electric charges. These relations also describe the pyroelectric and thermopolarization effects.