- Strength-to-weight ratio: Materials must be strong enough to withstand stress and load factors while remaining lightweight to improve fuel efficiency.
- Corrosion resistance: Aircraft operate in various environments, so materials must resist corrosion from moisture, salt, and other atmospheric elements.
- Temperature resistance: Materials must maintain structural integrity across a wide range of temperatures, from high altitudes to extreme weather conditions.
- Fatigue resistance: Components should withstand repetitive stress cycles without failure, ensuring long-term reliability.
- Flame retardancy: Materials should have fire-resistant properties to enhance passenger safety in case of emergencies.
