1. Thermo-Mechanical Analysis of Airplane Carbon-Carbon Composite Brakes Using MSC.Marc Z. Wolejsza, A. Dacko, T. Zawistowski, J. Osinski

2. Wheel – Brake Assembly

3. Tests

4. Experimental Data

5. FE Model for MSC. Marc Axisymmetrical thermo-mechanical problem (transient) 5 stators + 4 rotors (C/C composite, mechanical and thermal orthotropy) Friction-generated heat fluxes input from user subroutine Partial use of experimental data (eg. friction) Convection and radiation

6. FE Model for MSC.Marc

7. FEA Results

10. Pressure distribution along contact line (radiuswise) variation in time

11. FEA Results Temperature on second statorTemperature variation in vicinity of piston

12. Conclusions Strong nonuniformity of contact stress Resulting highly nonuniform temperature distribution Clear influence of material orthotropy