2D fundamental solution for orthotropic pyroelectric media

Fundamental solutions play an important role in electroelastic analyses of piezoelectric media. However, most works available are on the topic of identical temperature. On the basis of the compact general solution of orthotropic pyroelectric media, which is expressed in harmonic functions, and employing the trial-and-error method, the 2D fundamental solution for a steady point heat source in the interior of an infinite pyroelectric plane or on the surface of a semi-infinite pyroelectric plane are presented by four newly induced harmonic functions. All components of the coupled field are expressed in terms of elementary functions and are convenient to use.