ThermoMechanical Analysis of Airplane CarbonCarbon Composite Brakes Using MSC'Marc

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Thermo-Mechanical Analysis of Airplane
Carbon-Carbon Composite Brakes Using MSC.Marc

• Z. Wolejsza, A. Dacko, T. Zawistowski, J.
  Osinski

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Wheel Brake Assembly
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Tests
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Experimental Data
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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 fromuser
  subroutine
• Partial use of experimental data (eg. friction)
• Convection and radiation

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FE Model for MSC.Marc
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FEA Results
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FEA Results
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FEA Results
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FEA Results

• Pressure distribution along contact line
  (radiuswise) variation in time

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FEA Results

• Temperature on second stator

• Temperature variation in vicinity of piston

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Conclusions

• Strong nonuniformity of contact stress
• Resulting highly nonuniform temperature
  distribution
• Clear influence of material orthotropy