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Preliminary Considerations for Structures in Kevin Dahya's Team B: Artificial Gravity, Materials, Re-entry, Radiation Sh

This article explores the preliminary considerations for structures in Kevin Dahya's Team B, including artificial gravity, materials (composites vs. aluminum), re-entry, radiation shielding, and future considerations. It also discusses the pros and cons of artificial gravity, compares different materials, and explores re-entry materials and radiation shielding options.

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Preliminary Considerations for Structures in Kevin Dahya's Team B: Artificial Gravity, Materials, Re-entry, Radiation Sh

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  1. AAE 450 Kevin Dahya Team B Structures

  2. Preliminary Considerations • Artificial Gravity • Materials • Composites vs. Aluminum • Re-entry • Radiation Shielding • Future Considerations • Skills

  3. Artificial Gravity? • Pros • Crew better suited for earth’s gravity • No exercise regiment needed on return • Cons • More expensive • More complicated analysis

  4. Materials • Composites • Lighter weight (1.87 g/cm^3) • Stronger • Higher initial cost • Aluminum • Less initial cost • More weight (2.77 g/cm^3) • Less strength • Easier repair ability

  5. PRODUCT COMPARISON TABLE Comparison Table COI Materials Product COI Materials Advantage Comparable Product HR40/CE-3 High Strength M40J/Cyanate Ester HS40/CE-3 High Strength M46J/Cyanate Ester SR40/CE-3 Dimensional Stability with High Modulus M55J/Cyanate Ester TR30S/CE-3 Standard Modulus T300/Cyanate Ester K13710/CE-3 High Modulus HM/Cyanate Ester K1392U/CE-3 UltraHigh Modulus, Low Cost UHM/Cyanate Ester K13C2U/CE-3 UltraHigh Modulus, Moderate Thermal Conductivity K800/Cyanate Ester K13D2U/CE-3 UltraHigh Modulus, High Thermal Conductivity K1100/Cyanate Ester K63312/CE-3 Intermediate Modulus, Low Cost M46J/Cyanate Ester K63712/CE-3 High Modulus, Low Cost HM/Cyanate Ester HR40/301-1 High Strength M40J/Epoxy SR40/301-1 Dimensional Stability M55J/Epoxy TR30S/301-1 Standard Modulus, Low Cost T300/Epoxy K13C2U/301-1 UltraHigh Modulus, Moderate Thermal Conductivity K800/Epoxy K63712/Epoxy High Modulus, Low Cost HM/Epoxy 34-600/301-1 High Strength, Low Cost M46J/Epoxy Materials (cont.)

  6. Materials (cont.)

  7. Re-entryMaterials • High Temperatures (3000 K ?) • German Aerospace Center • Intended for CRV in 2003 • Can Withstand 2073 K • Ready for 2003 • Fiber reinforced ceramic • Space Shuttle experiences 1500 K

  8. Re-entry Materials (cont.) • Inflatable Re-entry Vehicle • Less Weight • Smaller Vehicle • Temperatures? • Cost? • Flown in 1996

  9. Radiation Shielding • Galactic Cosmic Rays • Solar Flares • High Temperature Superconductors • Electromagnetic Shielding • Liquid Hydrogen, Water, Aluminum, Lead • Polyethelyne

  10. Future Considerations • Further analysis of materials • Cost vs. weight • Repair ability • Strength • ERV sizing code • Maximum Efficiency

  11. Skills • AAE 454 • Structures Dept. Swales Aerospace • Femap/Nastran • Pro/Engineer • Autocad

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