Comparison of different domain integral evaluations in elasticity by boundary element method

In this work three different procedures are used for evaluation of the domain integrals in thermoelastic problems. The first one corresponds to the division of the domain into triangular cells and uses an efficient semi-analytical integration scheme to avoid the singularities within the cells. The other approaches are alternative ways of transforming the domain integrals into equivalent boundary integrals using the Galerkin tensor and the so-called Multiple Reciprocity Method. The results for two examples of steady-state temperature are compared and important remarks are made when temperature discontinuity is present.