The effect on thermal stresses of different tempreture loads in a composite disc

The aim of this study was to obtain of elastic-plastic thermal stresses in a thermoplastic composite disc. It was reinforced by steel fibers, curvilinearly. Finite element method (FEM) performed to calculate the thermal stress occurrences in the composite disc model. The modeling and solution procedures were carried out using ANSYS code. The various uniform temperature loadings were applied as the thermal loading. The solution was completed in two stages. Firstly, thermal elastic stresses were determined by elastic solution. Secondly, thermal plastic stresses were computed via elastic-plastic solution. In addition, the thermal residual stresses were calculated using the superposition method. All thermal stresses were obtained for both radial and tangential directions. According to obtained results, thermal stresses were occurred in composite disc by the applied uniform temperature loadings, since the composite disc have different thermal expansion coefficients through radial and tangential directions. It is clearly understand that the spreading and magnitudes of both thermal stresses and residual stresses in thermoplastic composite disc were strictly affected increasing of uniform temperature.