Description of Composite Material part 1

Composite Material

1. DEPARTMENT OF
MECHANICAL ENGINEERING
ME 440
Aerospace Engineering
Fundamentals
Hot Topic of the Week

2. DEPARTMENT OF
MECHANICAL ENGINEERING
Use of Composite Materials
in Propulsion Systems

3. DEPARTMENT OF
MECHANICAL ENGINEERING
What part do composites play in
things like thrust reversers and nozzle
equipment?
-- Keith

4. DEPARTMENT OF
MECHANICAL ENGINEERING
Composite Materials
• Consists of two materials (constituents)
• Matrix (Binder) and Reinforcement
• This blend gives composite materials
their unique and designable properties

5. DEPARTMENT OF
MECHANICAL ENGINEERING
Advantages of Composite Materials
• Stronger and stiffer than metals on a density basis
• Capable of high continuous operating temperatures
• Highly corrosion resistant
• Tailorable thermal expansion properties
• Tunable energy management characteristics
• Outstanding durability
• Low Observable

6. DEPARTMENT OF
MECHANICAL ENGINEERING
NASA
Advanced High Temperature Engine
Materials Technology Program
(HITEMP)

Goal: Providing revolutionary high-
temperature composite materials

7. DEPARTMENT OF
MECHANICAL ENGINEERING
Types of Composites
Polymer-Matrix Composites (PMCs):
425°C
Metal-Matrix / Intermetallic-Matrix
Composites (MMCs / IMCs):
1250°C
Ceramic-Matrix Composites (CMCs):
1650°C

8. DEPARTMENT OF
MECHANICAL ENGINEERING
Applications Under Development

CMC’s for turbine inlet
PMC’s General Electric`s F-404 engine
Turbine Blades

9. DEPARTMENT OF
MECHANICAL ENGINEERING
Still a Lot of Work To Do

Material Development
Application Specification