We establish an existence and uniqueness result for a system which consists
of a finite number of coupled nonlinear systems. In each system we have tw
o highly nonlinearly coupled equations. Such problems arise if one couples
thin rods of shape memory alloys, and each of the rods is described by Falk
's Landau-Ginzburg model. The two equations in each system stand for the mo
mentum and energy balance, respectively.