1. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 1 Lecture 1 ADVANCED COMPOSITES

2. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 2 What Composites are composed of ???!!! Of two or more phases have superior properties Reinforcement: Stiff, Strong, discontinuous Matrix: Less stiff, continuous, weaker Inter-phase: between Reinforcement and matrix

3. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 3 Advantages

4. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 4 Advantages High strength High stiffness Low density Adoptability Long fatigue life

5. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 5 Additional Improvements  Corrosion Resistance  Wear Resistance  Appearance  Temperature dependent behaviors  Thermal Stability  Thermal Insulation  Thermal Conductivity  Acoustic Insulation Why Superior  High Specific Strength (strength to density ratio)  High Specific Stiffness (modulus to density ratio)

6. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 6 Maintainability Serviceability Durability Operate for long time of period Long fatigue lives Easily maintainable and repaired However: Sensitive to hygrothermal environment Damage growth may be internal that requires sophisticated Non-destructive techniques for detection and monitoring Protective coating is necessary against erosion, surface damage and lightening strikes

7. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 7 Cost  Life cycle cost  Weight saving  Lower tooling costs  Reduced number of parts  Fewer assembly operations.  BUT high cost of raw materials

8. Mechanical Engineering Department Advanced Composites Dr. Talal Mandourah 8 Assignment and Study Plan Take a tour to a composite plant and write a report about The product: types, production method, cost, pictures (if possible) Assignments Quizzes Project Mid-term Final