Finite element analysis of non-dissipative thermoelastic interaction in unbounded fiber-reinforced media

Using the Green-Naghdi (GNII) model for the no energy dissipation case, this paper explores coupled thermomechanical behavior of fiber-reinforced materials with a spherical cavity. A finite element formulation with quadratic interpolation is created for the analysis of the transient response. The cavity wall is subjected to an exponentially decaying pulsed heat flux boundary condition. The graphs of the numerical results show how both fiber reinforcement and the pulse duration affect the temperature, displacement, and stress fields. The numerical graphs are presented to show the effects of fiber reinforcement, and time, on the temperature displacement and stress fields. Comparing the results from the reinforced and unreinforced cases, it is plain to see the addition of fibers alters the overall thermomechanical response, and the structure of the resultant fields. These results are an improvement in the choice of design, and optimization of the parameters in thermomechanical engineering of fiber reinforced materials.